Billy Bob Thornton Taken To The ER After Car Wreck

EXCLUSIVE

1030-billy-bob-tmz-01Billy Bob Thornton was taken to an L.A. hospital by ambulance after a car accident on Friday.

Law enforcement sources tell TMZ Thornton was the passenger in a car that collided with another in West Hollywood around 6:45 A.M. We're told the actor was complaining of a head injury so paramedics took him to Cedars-Sinai Medical Center to get checked out. 

A rep for Billy tells us it was nothing serious but paramedics urged him to go to the hospital to make sure everything was fine ... he returned to the set of his newest project later in the day.