Films Set In San Francisco

While I'm out here in the Bay this week, it got me to thinking about films I connect to San Francisco. There's a lot but only a few that really, really linger for me: Big Trouble in Little China, the Dirty Harry series, The Joy Luck Club, Star Trek IV, Vertigo, The Conversation, The Rock and for some bizarre reason, The Presidio, with Sean Connery kicking some poor schmuck's behind with just his thumbs. Go figure. What are some of your favorite San Francisco films?