That sort of brings up an interesting question. What video game property based movies are actually good? Of course, a lot of these "films" are made by the terrible Uwe Boll.
These are the ones I can think of..
Super Mario Bros.
The Wizard (not really a game, but must count)
War Games (not sure it was actually a game)
Tomb Raider 1 & 2
Tron
Tron Legacy (My favorite)
DOOM
Prince of Persia
Wing Commander
Far Cry
Bloodrayne 1, 2, and 3
House of the Dead
Dungeon Siege 1 & 2
Max Payne
Resident Evil Series (5 films?) (1 and 3 are decent)
Silent Hill
Alone in the Dark 1 & 2
Postal
Warcraft (Out next year maybe...so I guess we wouldn't know how it is)
Final Fantasy The Spirits Within
Final Fantasy Advent Children
I'm probably missing some.....anyone else know of any not listed?