As filed with the Securities and Exchange Commission on August 7, 2013

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

TIME WARNER INC.

(Exact name of registrant as specified in charter)

One Time Warner Center

New York, NY 10019-8016

(Address of principal executive offices)

Time Warner Inc. 2013 Stock Incentive Plan

(Full title of the plan)

Paul T. Cappuccio

Executive Vice President and General Counsel

Time Warner Inc.

One Time Warner Center

New York, New York 10019

(212) 484-8000

(Name, address, and telephone number, including area code, of agent for service)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

CALCULATION OF REGISTRATION FEE

PART I

INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

The document(s) containing the information specified in Part I will be sent or given to participants as specified by Rule 428(b)(1) under the Securities Act of 1933, as amended (the “Securities Act”). Such documents are not being filed with the Securities and Exchange Commission (the “SEC”) either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. Such documents and the documents incorporated by reference in this Registration Statement pursuant to Item 3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference.

The following documents filed with the SEC by the Registrant pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or as otherwise indicated, are hereby incorporated by reference in this Registration Statement and shall be deemed to be a part hereof:

All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act (other than any portion of such filings that are furnished under applicable SEC rules rather than filed) prior to the filing of a post-effective amendment which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, shall be deemed to be incorporated herein by reference and shall be deemed a part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein and to be a part hereof shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Item 4.  Description of Securities.

Not applicable.

Item 5.  Interests of Named Experts and Counsel.

Brenda C. Karickhoff, who is providing an opinion on the legality of the common stock being registered hereby, is Senior Vice President and Deputy General Counsel of the Registrant. As an employee of the Registrant, Ms. Karickhoff participates in equity compensation plans of the Registrant, on the same basis as other similarly eligible employees, pursuant to which she owns or has options or rights to acquire an aggregate of less than 1% of the Registrant’s outstanding common stock. Ms. Karickhoff is eligible to participate in the 2013 Plan.

Item 6.  Indemnification of Directors and Officers.

Under Delaware law, a corporation may indemnify any individual made a party or threatened to be made a party to any type of proceeding, other than an action by or in the right of the corporation, because he or she is or was an officer, director, employee or agent of the corporation or was serving at the request of the corporation as an officer, director, employee or agent of another corporation or entity against expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with such proceeding: (a) if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation; or (b) in the case of a criminal proceeding, if he or she had no reasonable cause to believe that his or her conduct was unlawful. A corporation may indemnify any individual made a party or threatened to be made a party to any threatened, pending or completed action or suit brought by or in the right of the corporation because he or she was an officer, director, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation or other entity, against expenses actually and reasonably incurred in connection with such action or suit if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, provided that such indemnification will be denied if the individual is found liable to the corporation unless, in such a case, the court determines the person is nonetheless entitled to indemnification for such expenses. A corporation must indemnify a present or former director or officer who successfully defends himself or herself in a proceeding to which he or she was a party because he or she was a director or officer of the corporation against expenses actually and reasonably incurred by him or her. Expenses incurred by an officer or director, or any employees or agents as deemed appropriate by the board of directors, in defending civil or criminal proceedings may be paid by the corporation in advance of the final disposition of such proceedings upon receipt of an undertaking by or on behalf of such director, officer, employee or agent to repay such amount if it shall ultimately be determined that he or she is not entitled to be indemnified by the corporation. The Delaware law regarding indemnification and expense advancement is not exclusive of any other rights which may be granted by the Registrant’s Restated Certificate of Incorporation or By-laws, as amended, a vote of stockholders or disinterested directors, agreement or otherwise.

Under Delaware law, termination of any proceeding by conviction or upon a plea of nolo contendere or its equivalent shall not, of itself, create a presumption that such person is prohibited from being indemnified.

Delaware law permits a corporation to adopt a provision in its certificate of incorporation eliminating or limiting the personal liability of a director, but not an officer in his or her capacity as such, to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except that such provision shall not limit the liability of a director for (a) any breach of the director’s duty of loyalty to the corporation or its stockholders, (b) acts or omissions not in good faith or that involve intentional misconduct or a knowing violation of law, (c) unlawful payment of dividends or stock purchases or redemptions or (d) any transaction from which the director derived an improper personal benefit.

Article IX of the Registrant’s Restated Certificate of Incorporation provides that, to the fullest extent of Delaware law, no director of the Registrant shall be liable to the Registrant or its stockholders for monetary damages for breach of fiduciary duty as a director.

Article VI of the Registrant’s By-laws requires indemnification, to the fullest extent permitted under Delaware law or other applicable law, of any person who is or was a director or officer of the Registrant and who is or was involved in any manner or threatened to be made so involved in any threatened, pending or completed investigation, claim, action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was serving as a director, officer, employee or agent of the Registrant or is or was serving at the request of the Registrant as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against all expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such proceeding; provided, however, that the foregoing shall not apply to a director or officer with respect to a proceeding that was commenced by such director or officer except under certain circumstances.

In addition, the Registrant’s By-laws provide that all reasonable expenses incurred by or on behalf of a director or officer in connection with any investigation, claim, action, suit or proceeding will be advanced to the director or officer by the Registrant upon the request of the director or officer, which request, if required by law, will include an undertaking by or on behalf of the director or officer to repay the amounts advanced if ultimately it is determined that the director or officer was not entitled to be indemnified against the expenses.

The indemnification rights provided in Article VI of the Registrant’s By-laws are not exclusive of any other right to which persons seeking indemnification may otherwise be entitled.

As permitted by Delaware law, Article VI of the Registrant’s By-laws authorizes the Registrant to purchase and maintain insurance to protect itself and any director, officer, employee and agent against claims and liabilities that such persons may incur in such capacities.

Item 7.  Exemption from Registration Claimed.

Not applicable.

Item 8.  Exhibits.

The exhibits listed on the accompanying Exhibit Index are filed or incorporated by reference as part of this Registration Statement.

Item 9. Undertakings.

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Securities and Exchange Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on August 7, 2013.

Each of the undersigned directors and officers of Time Warner Inc. hereby severally constitutes and appoints Paul T. Cappuccio, Pascal Desroches, Brenda C. Karickhoff, John K. Martin, Jr., Edward B. Ruggiero and Robert K. Kane, and each of them, as attorneys-in-fact for the undersigned, in any and all capacities, with full power of substitution, to sign any amendments to this Registration Statement (including post-effective amendments) and any subsequent registration statement filed by Time Warner Inc. pursuant to Rule 462(b) of the Securities Act of 1933, and to file the same with exhibits thereto and other documents in connection therewith with the Securities and Exchange Commission, granting unto said attorneys-in-fact, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that each said attorney-in-fact, or any of them, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons on August 7, 2013 in the capacities indicated.

EXHIBIT INDEX

* Incorporated by reference