Gosh, Kelda, you got it in ONE!
Notting Hill and Four Weddings and a Funeral are the exact same movie, except where you had a glamorous American style editor, you have a glamorous American actress! Everybody else is there:
The kooky redhead;
The straight-laced brunette woman;
The wacky, down-on-his-luck bloke;
The straight guy to inject reason and sense
The comic relief guy
Hugh Grant in almost exactly the same role; one was Charlies, the other was William.
... and then the drop-dead gorgeous brunette American woman who steals Hugh's heart. Dang it if I don't love both films anyway...