Lohan Cleans Up Act, Gets Back to Acting

2/14/2007 2:36 PM PST
Lindsay Lohan popped out of rehab and got back to work last night, filming scenes for her movie, "I Know Who Killed Me."

A radiantly healthy-looking LiLo is playing a woman who develops a dual personality after enduring a brutal kidnapping. She is seen here on a night shoot for the thriller.

Lindsay had an appendectomy on January 4, and entered Wonderland rehab on January 17.