Your Favorite Christmas Movies!

Jay and I watched "You've Got Mail", the other night and I loved that it is clear that it takes place partially during Thanksgiving and Christmas and it got me thinking... what other great movies out there have Christmas references, but aren't necessarily explicitly Christmas movies? I'm sick of watching "Home Alone", "Christmas Vacation", and other traditional Christmas classics. Help me switch up my Christmas movie list this December!! What are your favorites?!