Paramount held talks with at least 12 alternative bidders, identified in the filing as parties A through L. Warner Bros. was Party A, according to people familiar with the discussions. Paramount's then-Chief Executive Officer Bob Bakish and Warner Bros. CEO David Zaslav first met in December to discuss a deal, and the two companies and their advisers began discussions. By late February, according to the filing, the special committee of Paramount's board decided it would no longer share financial information with Warner Bros. given that the company had failed to make a specific merger proposal. Zaslav spoke to Bakish again on Feb. 28, the filing shows, and said he was still interested in a deal. But conversations with National Amusements Inc., the Redstone family holding company that controls Paramount, suggested Warner Bros. would have to pay them in cash and at a valuation that would make a transaction between them "challenging," according to the filing.