Million Dollar Madness(1986)

Original title: השגעון הגדול

This comedy about the "sanity" of those in an asylum focuses on popular Israeli comic Seffi Rivlin, who plays a bank manager who discovers that the inmates of a mental institution are running a counterfeiting operation from the basement of their hospital. Actors exaggerate their portrayals of the patients, and the plot zooms off in several directions at once