Movies you never get tired of watching

What movies do you never get tired of watching?

You know, those movies that you always stop at when channel surfing, or the ones that always come off the shelf when there's nothing else to watch or do, the movies you enjoy watching no matter how often you've seen them already. Not always your favourites, but probably pretty high on the list. Everybody has them.

Here are some of the ones in my list (in no particular order):

These are some of the ones that came off the top of my head so it's far from complete, but should cover most of them. What are yours? Feel free to leave a comment here with your list or post it to a blog entry.