Yesss! I loved that movie. I watched it long time ago, but it's one of my favorite movies. I think I watched the alternative endings on youtube, but I don't really recall. The one I can remember is the first one I watched on the movie and it was a very sad ending :(
If you really want to evaluate it properly, it's pretty stupid with a lot of plot holes. But it's a moderately entertaining flick to sit down and watch. I prefer the theatrical ending. The director's ending is so fucking ridiculous I couldn't believe it.
I did and I absolutely loved it! I didn't watch the sequel though. By alternate endings, do you mean the different endings that were actually in the movie or endings that were extra that aren't seen in the movie?