Links: TVTropes, Wikipedia, IMDB (6.6).
This film was a childhood favorite of mine, and I was pleased to say that it holds up quite well when re-watching it as an adult. (My friends were slightly less enthusiastic, but I think that's because I kept singing along and I can't carry a tune.) It's a black comedy film musical, set in Manhattan in the early 1960s, about a giant talking plant that offers a Faustian bargain — money and fame in exchange for just a little bit of murder. The film is well known for having a focus-group happy ending, where the main character survives and gets the girl, but I felt the happy ending works well enough and that the planned ending (filmed but never released) was needlessly vicious to the love interest, Audrey. Anyway, the songs are fun, the story is fun, the acting is great... I have a hard time thinking of any real negatives to the story. Score: 4 stars out of 4.