Jozef Szumski
Jozef Szumski voted up Didge Doo's answer
Bringing Up Baby. #1 in my book. Hepburn and Grant at their funniest.
The Devil's Disciple (Bernard Shaw's take on the US War of Independence)
Man of La Mancha
Tora! Tora! Tora! (Best  Pearl Harbor movie ever made).
Independance Day.

But the most moving film I ever watched was Cry Freedom (the Steve Biko story). Powerful stuff!