W I T N E S SE T H:

Exhibit 4.9(b)

This Supplemental Indenture, dated as of December 23, 2004 (this “Supplemental Indenture” or “Guarantee”), among American Multi-Cinema, Inc., AMC Realty, Inc., AMC Entertainment International, Inc., National Cinema Network, Inc., AMC-GCT, Inc., American Multi-Cinema of Florida, Inc., Centertainment, Inc., Premium Theater of Mayfair, Inc., Premium Cinema of Yorktown, Inc., Club Cinema of Mazza, Inc., Premium Theater of Framingham, Inc., GCT Pacific Beverage Services, Inc., AMC Card Processing Services, Inc. (each a “Subsidiary Guarantor” and collectively, the “Subsidiary Guarantors”), AMC Entertainment Inc., as successor by merger to Marquee Inc. (together with its successors and assigns, the “Company”), and HSBC Bank USA, National Association, as Trustee under the Indenture referred to below.

W I T N E S S E T H:

WHEREAS, the Company and the Trustee have heretofore executed and delivered an Indenture, dated as of August 18, 2004 (as amended, supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of 8⁵/₈ % Senior Notes due 2012 of the Company (the “Securities”);

WHEREAS, Section 4.08 of the Indenture provides that the Company is required to cause each Subsidiary that Guarantees obligations under the Credit Facility, the Existing Notes or other Indebtedness of the Company to execute and deliver to the Trustee a supplemental indenture pursuant to which such Subsidiary will fully and unconditionally Guarantee, on a joint and several basis, the full and prompt payment of the principal of, premium, if any, and interest on the Securities on a senior basis; and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee and the Company are authorized to execute and deliver this Supplemental Indenture to amend or supplement the Indenture, without the consent of any Securityholder;

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Subsidiary Guarantors, the Company and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Securities as follows:

ARTICLE I

Definitions

SECTION 1.1  Defined Terms.  As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined, except that the term “Holders” in this Guarantee shall refer to the term “Holders” as defined in the Indenture and the Trustee acting on behalf or for the benefit of such Holders.  The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

ARTICLE II

Agreement to be Bound; Guarantee

SECTION 2.1  Agreement to be Bound.  Each Subsidiary Guarantor hereby becomes a party to the Indenture as a Guarantor and as such will have all of the rights and be subject to all of the obligations and agreements of a Guarantor under the Indenture.  Each Subsidiary Guarantor agrees to be bound by all of the provisions of the Indenture applicable to a Guarantor and to perform all of the obligations and agreements of a Guarantor under the Indenture.

SECTION 2.2   Guarantee.  Each Subsidiary Guarantor agrees, on a joint and several basis with each other Subsidiary Guarantor, to fully, unconditionally and irrevocably Guarantee to each Holder of the Securities and the Trustee the Guarantor Obligations pursuant to Article Ten of the Indenture on a senior basis.

ARTICLE III

Miscellaneous

SECTION 3.1   Notices.  All notices and other communications to the Subsidiary Guarantors shall be given as provided in the Indenture to each Subsidiary Guarantor, at its address set forth below, with a copy to the Company as provided in the Indenture for notices to the Company.

SECTION 3.2   Parties.  Nothing expressed or mentioned herein is intended or shall be construed to give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained.

SECTION 3.3   Governing Law.  This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York.

SECTION 3.4  Ratification of Indenture; Supplemental Indentures Part of Indenture.  Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect.  This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby.

SECTION 3.5  Trustee not Responsible.  The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this First Supplemental Indenture or for or in respect of the recitals contained herein, all of which is made solely by the Company.

SECTION 3.6   Counterparts.  The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement.

SECTION 3.7   Headings.  The headings of the Articles and the Sections in this Guarantee are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed as of the date first above written.

SUBSIDIARY GUARANTEE

Each of the undersigned (the “Guarantors”) hereby jointly and severally unconditionally guarantees, to the extent set forth in the Indenture dated as of August 18, 2004 by and among AMC Entertainment Inc., as successor by merger to Marquee Inc., a Delaware corporation, as issuer (the “Company”) and HSBC Bank USA, National Association as Trustee (as amended, restated or supplemented from time to time, the “Indenture”), and subject to the provisions of the Indenture, (a) the due and punctual payment of the principal of, and premium, if any, and interest on the Securities, when and as the same shall become due and payable, whether at maturity, by acceleration or otherwise, the due and punctual payment of interest on overdue principal of, and premium and, to the extent permitted by law, interest, and the due and punctual performance of all other obligations of the Company to the Holders or the Trustee, all in accordance with the terms set forth in Article Ten of the Indenture, and (b) in case of any extension of time of payment or renewal of any Securities or any of such other obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise.

The obligations of the Guarantors to the Holders and to the Trustee pursuant to this Subsidiary Guarantee and the Indenture are expressly set forth in Article Ten of the Indenture, and reference is hereby made to the Indenture for the precise terms and limitations of this Subsidiary Guarantee.  Each Holder of the Security to which this Subsidiary Guarantee is endorsed, by accepting such Security, agrees to and shall be bound by such provisions.

[Signatures on Following Pages]

IN WITNESS WHEREOF, each of the Guarantors has caused this Subsidiary Guarantee to be signed by a duly authorized officer.