The movie was about a producer or director who broke out of an asylum. A local movie theatre was either reshowing the movie or it was a newer version that was the producers. Some kids were watching the movie in a theatre. The producer was in the theatre but the kids didn't know it. The producer started killing the kids. As some kids remained in the showing area of the theatre they would watch their friends get killed on screen. They thought it was a joke. Unfortunately that's all I can remember.

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