The Sixth Sense
I consider this to be M. Night Shyamalan's greatest work thus far in his young career. Osment is perfect playing a creepy little kid (a role for which he was nominated for a best supporting Oscar). Willis excels as the devoted, yet somewhat detached child psychologist. The directing is also marvelously done - the atmosphere in this movie is actually creepier than a lot of horror films (of which this is not). Oh, and if you somehow haven't heard yet....? It’s got a great ending.