Looking for old movie about girl losing weight then seeking revenge
I am trying to find the name of a movie from the late 60's or early 70's in which an overweight college girl who after being in full body cast due to a car accident loses weight and comes back to get revenge on the people who wronged her. I remember a couple of scenes from the movie that might help. In one scene she gets revenge on her former college roommate who happens to be a cheerleader by opening a window while the girl is doing cartwheels in their room. The girl cartwheels right out the window. The other scene I remember is at the end after she has been arrested. She is in the back of the police car after being arrested I think at a bar & the bar then blows up as they are driving away. I don't know who is in the movie. I saw this years ago when I was in school and cannot remember the name. I would love to see this movie again. Can anyone help?