A friend used a Casablanca quote on a mailing list I read, and I realized there are probably others who share a particular obsessive trait I have.
There are some films I could watch over and over again and never, ever get tired of them. Those around me, however, would probably be quite happy if they didn't have to sit through some of them ever again.
My list, in the rough order of most-obsessed to moderately-obsessed:
Sleepless in Seattle
My Fair Lady
To Kill A Mockingbird
I wonder which I've forgotten?