The new DVD release of Witness is pretty good ... a nice documentary accompanies it as an extra.
My "good" movie is and always will be The Great Escape. Despite having purchased this movie I watch it every single time I encounter it on TV.
Some of the "bad" ones:
Mars Needs Women
The Deserter (It's a Western, but I saw it in a theater on my birthday as a child, along with a rerelease of Billy the Kid vs. Dracula)
Nearly Any Black and White Horror Film from Universal Pictures (Dracula, Frankenstein, The Wolfman, The Mummy, and the assorted sequels)
The Hammer Horror films (mostly starring Christopher Lee)
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