Wait wait wait... someone's watched The Fifth Element? Nice. I also liked Idiocracy, with its take on the wall street crash (when computers automatically lay off 50% of the population).
My fave? Inception. I'm one of the gifted few who can actually understand the plot after watching it once. I AM THE 1%.
Other favourites are:
The Holy Grail
The Life of Brian (so irreverent it's funny)
The Day After Tomorrow
Batman Begins and The Dark Knight, haven't watched TDK Rises
12 Monkeys (again, 1%)
Time Bandits (my gift)
Generally most stuff that would be perfect, but is too convoluted to understand.

how can i ever choose 1 favorite of all time?

i cant compare "Battle Royal" whit "City of God" or "Clerks".
so i just pick 1 i like. (beside the 3 above)

"being john malkovich" is A favorite of all time.

quite hard to choose but the movie that made me the most touched, and emotional goes to the "passion of the Christ". everyone should see this movie, Christians especially. it shows the life, and death of Jesus Christ, depicted by Mel Gibson. Although Mel is not the most suited for this movie, in regards to his habits, he did do a fine job with this film. wish i could have seen it in theaters though,still,it had me in tears through the movie, and at the end.
--very good movie for all to see--

Hard to choose, but I'll say:
1. Inception
2. The Dark Knight.
3. Inglorious Basterds.

I obviously like a lot Christopher Nolan, also Tarantino. Of my top ten most of movie are from them.

1. Die Hard(whole series)
2. A Few Good Men
3. Harry Potter(whole series)

Ironclad

1. Hunger Games
2. Pirates of the carribean: At world's end
3. Matrix

-Jeff

Action: The Matrix
Special Effects: Terminator 2
Sci-Fi: Aliens
Hero: The Dark Knight
Military: Starship Troopers
Crime: Inception
Gangster: Pulp Fiction
Mystery: The Fugitive
Law/Legal: 12 Angry Men
Prison: Shawshank Redemption
Fantasy: The Princess Bride
Comedy: Monty Python and the Holy Grail
Suspense: Jaws
Adventure: Indiana Jones and the Last Crusade
Animation (humor): The Emperor's New Groove
Animation (depth): Up
Partial animation: Who Framed Roger Rabbit?

i like the Jacka$$ movies

Rush Hour was a great movie, its been my favorite movie since I was 5 I think, maybe younger. Rush Hour and Die Hard take the cake for me.