This is an incredible film that should be much more widely seen. The whole tone of the film is much more palatable for many than One Flew Over The Cuckoo's Nest or Girl, Interrupted or even The Snake Pit. Marlo Thomas is a deft thespian magician in her portrayal of Marie.
I can't say enough about this film. Get it on Amazon video as a rent or buy, or buy the DVD, which is cheap on Amazon.com, and I aim to do eventually. No spoilers here...just be ready for a movie that can make you cry tears of sadness and tears of joy, as well as make you laugh heartily in key parts.
Last thing: Marlo Thomas, without a doubt, is one of the greatest American actors living today. If you don't believe me, just sit down and watch this film!!