At the Golden Globe Awards, where she presented the prize for Best Screenplay, Jennifer Aniston sported a va-va-va Valentino number with a sky-high slit that made her golden gams look about 10 miles long. Turns out toned legs, not diamonds, are a girl's best friend.

Not just Aniston's. But Brad Pitt's baby mama Angelina Jolie's too. Eagle-eyed gown-gawkers at Usmagazine.com spotted the distinct similarity between Aniston's Globes dress and the thigh-revealing Versace Atelier number that Jolie wore in May during the Cannes Film Festival. Chalk it up to monkey-see, monkey do, imitation being the sincerest form of flattery or a subtle message from Jen to Angie that "anything you can do I can do better."Although Aniston's motivation for the leg show remains up in the air and fashion watchers are divided on who wore the look better, the 40-year-old Aniston had a ball at the pre-awards party on Friday, where she ran into rumored ex-flame Bradley Cooper and hung out with Gerard Butler, according to People.

Aniston and Butler star in "The Bounty Hunter," a film out in March, and have remained pals since wrapping. "Jen was in a great mood, a social butterfly and mingled for almost three hours," an insider said. "Gerard entertained Jen, and Jen kept giggling like she always does with Gerard."

Aniston also had a close encounter with ex-boyfriend Tate Donovan, who now stars in "Damages."No damages in the wake of that relationship, though. Aniston reportedly seemed thrilled to see him when he came by to say hello.