Behind a terror attack at a sydney cafe. Australias Prime Minister speaking out. Good morning, everyone. Welcome to early start. Im john berman. It is wednesday, december 17th. 5 00 a. M. In the east. Christine romans is off this morning. Breaking overnight, premiere cancelled. New fears overwhelm the industry. The entertainment chain announced that the World Premiere of the interview has been called off. It had been set for tomorrow. This follows a new warning from the group behind the huge cyberattack on sony. They call themselves the guardians of peace. They threatened unspecified violence at theaters that show the the interview. Its a film about an attempt to assassinate north Korean Leader kim jongun. Now despite the premiere cancel las vegas, a person close to theization tells cnn that so far sony has no plans to pull the film, pull the interview altogether. Cnns pamela brown with latest from washington. Pamela. Well, john, this morning, the fbi is investigating a threatening mes