Worst Movie Endings

Hey Everyone,
I was just thinking about the worst endings to movies ever and I would have to say the worst endings for me would be;
The Mist (2008)
Beneath the Planet of the Apes
Chronicles of Narnia: Prince Caspian (2008)
and
The Matrix Revolutions
I will not go into how bad these are but I will mention that these movies all were ruined in some way by the ending (some were bad to begin with)
anyway if you want to know what I am talking about here's an example:



I don't know if Steven King had that ending originally in his book but seriously, wtf?
Argh!!! WHY?
Please comment.