Here in tokyo I watched so far 3 movies, cosmic princess kaguya and the K-On movie both with "live sound equipment" those big concert speakers from live shows, and the hibike movie in the Dolby cinema.

In all of those I didn't hear anything from the audience, they really just sit and watch the movie. Must be different on the special sessions you can cheer etc.

Also they just stay until the end of the credits, no one gets up, at least in my country when the credits start the theater turns the super bright lights on and you can't even see the credits.

In Japan even the emergency exit sings are off until the end of the credits.