Katie’s Dawson’s Creek costar Michelle Williams (29) rocked a sophisticated one-shouldered Lanvin dress to the Shutter Island premiere, showing off her legs in sexy heels. Katie also wore a one-shouldered frock in 2007 but made sure to cover up in a long version, pairing it with flats.

Kirsten Dunst (28) paired flared denim duds with a bohochic top and wedge sandals, while Katie opts to wear her jeans with oversized boyfriend sweater and ballet flats.

Kate Beckinsale is 6-years-older than Katie, but still manages to look super sexy in denim.

While Reese Witherspoon (34) made sure to show off her gams in sexy wedges, while wearing a loose-fitting boyfriend cardigan, Katie paired her sweater with pleated skirt and ballet flats, resulting in a not-so-sexy look!

Helen Mirren is 65-years-old, and wears floor length trench coats. So does Katie!

Tights under a dress? No problem for Liv Tyler (33), who looked playful by pairing the look with strappy sandals. Katie on the other hand, opted for clunky boots and a cardigan.

White hot? Jessica Alba (29) opted for a lowcut summery dress, while Katie covered up in a high halter.

Eva Mendes (34) looked fun and playful in haute hatwear, while Katie looked grannyish in her beret.

Angelina Jolie is 4 years older than Katie, but still manages to look younger by wearing slim-fitting pants with figure-flattering wrap tops.