Oscars Preview: Best Actress

Meryl Streep, Sandra Bullock, Gabourey Sidibe and more make for a unique Academy Awards battle.

On Sunday, the eyes of the world will be on a tiny little man named Oscar. But that doesn't mean we won't also be paying attention to five very special ladies -- the women who gave us the most powerful, moving and awe-inspiring performances of the year.

From veterans to newbies, here are the five women competing for Best Actress -- and whose name we expect to hear called on Sunday:

Sandra Bullock, "The Blind Side"

Her most endearing qualities are an easy smile, a youthful enthusiasm and the rare ability to be celebrated everywhere from the

lock-ryan-reynolds-get-mentally-prepared-for-big-show/">MTV Movie Awards to the Kids

Choice Awards to random German ceremonies. So, what few realize is that Bullock is a 45-year-old Hollywood veteran whose résumé dates all the way back to bad "Bionic" TV movies. Now, after all this time, Bullock broke through with a most unlikely film: The family-friendly football weepie that cast her as no-nonsense Mom Leigh Anne Tuohy. Can she win an Oscar and a [article id="1631230"]Razzie in the same week[/article]? As "Blind Side" taught us, nothing is impossible if you put your mind to it.

Helen Mirren, "The Last Station"

As resilient a Hollywood talent as you're likely to find, Mirren has weathered decades as an actress and become better with each passing one. It wasn't until 1995 that she began being recognized by Oscar ("The Madness of King George," "The Queen," "Gosford Park") and mainstream audiences ("Raising Helen," "National Treasure 2"). With "The Last

Station," Mirren and Christopher Plummer depicted the lives of Russian author Leo Tolstoy and his wife Sofya -- and collected two Oscar nominations to go with their combined 144 years of life experience. We're not sure that Mirren will win again, but if she does we know this: Her speeches are never boring.

Carey Mulligan, "An Education"

Every year's ceremony needs an Amy Adams, an Ellen Page or a Laura Linney -- an actress who comes out of nowhere, blows everyone away and, win or lose, you know you'll be seeing her everywhere soon enough. This year's honors go to Mulligan, a 24-year-old with few American credits but the talent to give a dazzling performance as a '60s London teen

undergoing a major life transformation. If you don't see her onstage Sunday, don't worry -- there'll be plenty more of this young actress coming your way soon, as everyone in Hollywood seems to want her in their next movie.

Gabourey Sidibe, "Precious"

In "Precious" she plays a teen living quite possibly the worst existence your mind could possibly imagine for someone that age. In real life, she's now living one of the best, most exciting lives one could imagine for a first-time actress. In one of the only things Gabourey does have in common with poor Precious, the actress is currently

imagining herself taking the stage in a beautiful dress to massive applause. Even if the dream doesn't come true, however, she sure has enjoyed a "Precious" ride.

Meryl Streep, "Julie & Julia"

She's the titan of trophies, the archbishop of accolades and the sultan of acceptance speeches. Sure enough, Meryl already has two Oscars -- but has collected nothing but nominations since her 1983 "Sophie's Choice" win. Playing good-eats icon Julia Child, Streep often goes for breezy laughs instead of heartbreaking emotion, but she is one of the

rare talents who could pull off such a balancing act. Look for Streep to win this weekend -- and continue accumulating enough gold to be the female equivalent of Mr. T.

The 2010 Academy Awards are almost here, and MTV News has it covered every which way -- with photos, interviews, live blogs and more. Be sure to visit on Sunday at 7 p.m. ET for our live Oscars red-carpet show, where we'll be talking to everyone from Clooney and Bullock to Kristen and Taylor.

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