You know what I do? I gravitate towards a favorite movie and stick with it for a year or two. Every two or three months during that period, I watch it. In recent years it's been Pulp Fiction, The Godfather and The Godfather Part II. The reigning film right now, and for the past year or so, is The Big Lebowski. I wrote about it before. (Big hat tip to Weer'd for suggesting how I might lighten up the blog).
One time a friend told me she never would read a book a second time or see a movie a second time, since there are so many not yet read or seen. That impressed me, but I do it differently. Books, I read three or four times if I really like them. That's over decades. Movies I can see between 10 and 20 times if they're favorites.
How about you? How do you do it?