There are rumors everywhere about that movie. I know that Delta Tau Chi is based off of Delta Chi and Omega Theta Pi is based off of Beta Theta Pi. Being a Beta that doesn't flatter me too much.
But nationally those are the reputations of DX and Beta. I have heard that it was based at Eastern Illinois and University of Illinios, but no one know that for sure. Also John Belushi did go to Southern Illiniois University and he added some of his own experience to the movie. Might I add I have a "college" shirt from the same place that he got his made at. (As if anyone cares) Faber College I know is supposed to be in TN because at the Student Council meeting there is a TN state flag next to the American Flag. I don't know what that's worth to ya, but there is a little more insight.