I was reading a discussion on
What was the last movie you saw? thread, and I thought of this one. I love surprise endings (the actually surprising ones, that is), but I also love a great ending, twist or not. In case anyone is interested, I'm opening the thread to discuss any type of endings. Please, spoiler warnings for movies still in theater or on DVD for less than 3 months.
However, feel free to spoiler tag and older movie if you think it's worth it.

In any case clearly marking and highlighting the movie's title is enough for anyone reading to skip the discussion if they so wish.
Off the top of my head I can say I love the ending to
Before Sunset. The first time I saw it I cringed because I so did not want that to be the end of the film, but even in my shock I appreciated how unconventional and perfect it was. It was a perfect moment for the characters and the fans to say goodbye to the story for now or forever (not sure if they'll be another one, but either way, it works). It really was a tribute to the chemistry and charm and the odd relationship between Celine and Jesse.
Another classic is
Clue with its multiple endings, all hilarious and ludicrous. :lol:
Least favorite?
A new one, the movie
Legion. The ending was so unsatisfying and rushed, it felt more like a sloppy midsection than an actual ending.