This is a film made by Robert Zemeckis along with help from his writing partner, Robert Gale. However, it was not intended as a feature...just a short student film, as the pair were in graduate school and this was apparently their Masters project at USC. The two later went on to make various films together...some bad ("1941") and some very good ("Back to the Future").
When the film begins with some guy going in to a doctor's office. Immediately, it's clear that the men are not professionals and the acting is terrible at times...but again, this was NOT intended as high art! And so it goes throughout the film...with acting that clearly isn't polished.....though you expect this with most student films.
The story is nutty and not especially deep...set to the music from "The Great Escape". An ex-soldier is released from a sanitarium and on his way home, he meets nothing but dangerous loopy people. On the bus, one passenger begins punching people for no reason and another begins shooting wildly and demands the driver take the bus to Cuba! When he finally gets home, things are even nuttier...if that's possible.
This clearly shows much of the humor the pair would use in "1941". Thankfully, they did improve their work and try something other than crazed soldier stories. It's pretty bad...really violent and kinda dumb. BUT, for guys in their 20s, they have to start some place...and it is interesting to watch simply to see where it all began.
So, despite the 2, it IS a film worth seeing...particularly by film students and the curious.