Splatter University

Splatter University is an American 1984 slasher film. It was distributed by Troma Entertainment.

The original version of the movie was shot in 1981, and it clocked in at around 65 minutes.minutes of additional scenes with students were filmed the next year to pad out the running time.The filmmakers were originally told theyd have two weeks to shoot at Mercy College, but the school cut their time by a week, so many members of the crew wound up sleeping in the classrooms to ensure the film was finished. When students returned to school they were alarmed to find crew members cleaning up fake blood. ........

Source: Wikipedia