Vote! Sandra Bullock's best look

With her Best Actress awards at the Golden Globes and the Screen Actors Guild tucked under her arm, Sandra Bullock has proved that age has nothing to do with the box office. In fact, The Blind Side actress' brilliant performance may fetch her an Oscar nomination as well.

But it's not the 45-year-old star's acting talent that this poll is about. Rather, it's her different looks in the movies. Take a look through this slide show and vote for your favourite Sandra Bullock look.

We begin with this no-nonsense look from last year's popular rom-com, The Proposal, where Sandra looked the executive editor-in-chief of a book publishing company with her severe ponytail and impeccable dress sense.

Sandra dyed her hair blond and developed a Southern accent for her role of Leigh Anne, a conservative suburban woman who takes in a homeless African-American teen (newcomer Quinton Aaron) from a broken home to help him fulfill his potential.

Bullock is convincing as a hard-working environmental lawyer in New York City with her street smart clothes and neat fringe, in Two Weeks Notice.

Bullock, who led a tomboyish lifestyle during her childhood, relished playing masculine FBI agent Gracie Hart in the Miss Congeniality movies.

In fact, the best moments of the 2000 flick are the tomboy parts before her transformation into a sleek and sophisticated beauty queen in the running.

Bullock kept her look casual in loose dresses and simple hair do in keeping with her role of a widowed witch in the 1998 fantasy flick, Practical Magic.

Though she wore the same outfit throughout the movie, Speed, Bullock shines in her breakout role as a woman who is forced to drive a bus that can't go under 50 mph -- or it will explode.