Alliance Atlantis Communications Inc. (formerly traded as TSX:AAC) was a Toronto-based Canadian-American media company that operated primarily as a specialty service operator in Canada. Alliance Atlantis also had offices in Halifax, Los Angeles, London, Dublin, Madrid, Barcelona, Shannon, and Sydney. All of the former Alliance Atlantis specialty networks are now owned by Corus Entertainment The films division was later acquired by Entertainment One group and folded into eOne on January 9, 2013.