This is just my opinion, but I didn't like Dark City. The plot was interesting, but I felt the execution and some of the acting was horrible.

Some parts of the movie were just dumb. The ending comes to mind. I almost bust a gut laughing when "they" put everyone to sleep at the Police Station.

The theatre I was in started clapping at the end, but it wasn't out of appreciation :)

I'd say the best movie IMHO was The Truman Show, but it had a couple serious flaws of it's own so don't jump on this...

Oh well, just my $0.02