Sean Penn went ballistic on a paparazzo this afternoon -- and we've learned the photog just filed a police report against the actor.
The cameraman -- Jordan Dawes (not a TMZ guy) -- is accusing Penn of battery after a confrontation near the Brentwood Country Mart in Los Angeles, where Sean had just eaten lunch.
Penn was seen kicking and hitting the photographer on a side-street multiple times before leaving.
Sean's rep had no comment.
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