Police spokesman Bruce Borihanh says the 45-year-old Petty was arrested Saturday night in the Venice neighborhood of Los Angeles. He says the unidentified skateboarder was treated for injuries at the scene.
Petty was booked into jail early Sunday and released after posting $100,000 bail.
A call to her manager was not immediately returned.
Petty was the star of the 1995 movie "Tank Girl" and has also appeared in "Point Break" and "A League of Their Own."
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