In the film based on the album, the sound at the beginning of the song is depicted as coming from a train entering a large tunnel, rather than a helicopter, as heard on the album. According to Gerald Scarfe, there was supposed to be a puppet of the teacher at the end of the tunnel in the film. Alan Parker made shots of it, but it didn't work out, so they used Alex McAvoy, who played the schoolteacher, to do the scene instead. Before the cut in the middle for the Schoolmaster to mock Pink, somewhat quiet hysterical laughter is heard, extremely similar to the Schoolmaster's voice. Additionally, the song is slightly faster and the bass is noticeably louder compared to the album version.