Ours had to be on the ceiling within a certain distance to the door but that was in a bedroom. We also had to have one in the hallways outside of each bedroom. Being that it's a theater room and not a bedroom where someone is sleeping I'm not sure that there is code on that other than you would obviously want to know in the event of a fire. I may still have the building code specs at the house. If I do I'll send you the updated code.

LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8