I went to see Driving Lessons a week ago and never realized that Julie Walters (who plays retired-actress Evie, employer of Rupert Grints' character Ben) is the actress who plays Molly Weasley.
Dumbass, party of one.
I was sure I had looked her up on IMDb, but obviously not because I would have noticed that she was in the HP franchise.
But how frickin' sweet is that? I love when the same people work on different movies with each other. Like most of the successful British actors, actually.