Movie Non-Review: Valkyrie

Normally, I'd go see a movie like "Valkyrie"; I like WWII movies, and I like murder conspiracy movies. In this particular case, however, I'm not planning on seeing it for one reason, and one reason only -- it stars Tom Cruise. In the previews, he looks so unsufferably bad that I'm convinced he's made a film that's about Tom Cruise being an "important actor", rather than an historical figure.

Are there any actors/actresses/directors who will make you avoid a movie you'd otherwise see?

(In defense of "Valkyrie", Dennis Mansfield did see it, and liked it.)