Mel Gibson -- Before the Alleged Battery

7/30/2009 9:40 AM PDT
TMZ has just obtained this shot of Mel Gibson with GF Oksana Grigorieva inside Playhouse in Hollywood last night -- before he allegedly got too hands-on with a photographer who tried to take their picture.

Someone is at the LAPD's Hollywood Division right now filing a battery report against Mel -- who reportedly became irate at a photog and ripped the guy's shirt open.

Gibson -- who had an infamous DUI case in 2006 -- is currently in the midst of a pricey divorce with estranged wife, Robyn.