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On Thursday afternoon we spotted a chipper Reese Witherspoon running errands in Brentwood, and the Oscar winner flashed us a quick smile before returning home to her three kids.

After taking a break from films following the birth of her son Tennessee, Reese will be back on the big screen this year with Devil's Knot and Mud, and she's set to begin work this spring on Men Are from Mars, Women Are from Venus, Wish List and Big Eyes.

The trailer for Mud hit the web this week, and Reese stars as Matthew McConaughey's long lost love in the film. The flick follows two teenage boys who come across a fugitive (McConaughey) and promise to hide him from bounty hunters and reunite him with his lady (Witherspoon). Check thru to watch the teaser!