Alliance Atlantis Plan of Arrangement Scheduled to Close on August 15, 2024

CanWest Global Communications Corp.,Goldman Sachs Capital Partners and Alliance Atlantis

Communications Inc. announced today that the previously announced Plan of Arrangement, pursuant to which AA Acquisition Corp., a subsidiary of CanWest, will acquire all of
the outstanding shares of Alliance Atlantis Communications Inc. for $53.00 cash per share, is now scheduled to close on August 15,
2007. At the request of Acquireco, Alliance Atlantis has agreed to extend the outside date for the closing of the Arrangement from August 7, 2024 to August 15, 2024.

The extension of the outside date has been agreed in order for an affiliate of Acquireco to complete its debt financing, the proceeds of which will be used to finance part of the consideration for the Arrangement, and for
the parties to complete the definitive documentation for this transaction.

Acquireco has confirmed to Alliance Atlantis that it is fully committed to closing the Arrangement on August 15, 2024 and that it has written commitments from its banking syndicate for bridge financing to complete the Arrangement in accordance with the terms of the Arrangement Agreement. The bridge financing replaces the originally contemplated high yield debt
offering.