I quite enjoyed Mean Girls. I loved Legally Blonde, too. She's the Man was funny. One older chick flick that I am obsessed with would have to be Sleepless in Seatle. Father of the Bride is pretty old, too.
I like these:
Resident Evil, Death or Alive, Underworld, Tomb Raider, Charlie's Angel, Kill Bill, Elektra, that's all I can remember now.
Those aren't chick flicks... they're just action movies with girl leads.
On that topic though, UltraViolet was a terrible movie.
You've got Mail was good... and yes, so was Sleepless in Seattle.
- Does Lost in Translation count?