PIC: Blonde Natalie Portman Shows Off Flat Tummy, Legs in Skimpy Outfit

Actress Natalie Portman on the set of the 'Untitled Terrence Malick' movie in Austin, Texas on October 9 2012. FameFlynet

Very little is known about Terrence Malick's upcoming film — except that Natalie Portman looks hot in it!

The 31-year-old actress showed off her amazing bod on set Tuesday in Austin, Texas. Portman, who is mom to son Aleph, 16 months, flaunted her flat tummy in a pink crop top shirt and short denim skirt.

The Oscar-winning actress filmed scenes alongside Michael Fassbender, 35, for Malick's currently untitled project, reportedly set in Austin's music scene about two intersecting love triangles. See more photos of Natalie Portman on set.

For her role, Portman, who is married to dancer-choreographer Benjamin Millepied, got a makeover to go from brunette to blonde. "Natalie makes a beautiful blonde!" colorist Tracie Cunningham told Us Weekly. "She needed to make the change for an upcoming movie role, and using Redken's Blonde Dimensions we achieved a gorgeous, multi-dimensional golden blonde."

The film is also set to star Ryan Gosling, Rooney Mara, Christian Bale and Cate Blanchett. And it looks like Gosling, 31, and Mara, 27, will also have a romance in the film. On Sept. 25, the young Hollywood stars were photographed shooting a kissing scene!

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