Or where there's a not so happy ending?
Most Helpful Girl
Most Helpful Guy
Depends on what you would considered "good" movies. There are many movies where the main character (s) dies and sometimes it occurs in the sequels. There are even movies where nobody makes it out alive in the end.
Right now I remember Mirrors, The Cube, The Perfect Storm, Alien 3, and The Terminator. I'm certain that none of them have a happy ending.0