Mel Gibson Back In Court Over Baby Lucia

8/12/2011 1:05 PM PDT

Mel Gibson Back in Court Over Baby Lucia

Mel Gibson
just showed up at the L.A. County Courthouse to meet with the judge in his custody war with Oksana Grigorieva.

Mel will be in Judge Scott Gordon's courtroom for a mediation session over the allocation of Lucia's custody and visitation.

According to the custody deal the couple struck more than a year ago -- the one Oksana tried to repudiate -- Mel's custody increases as Lucia gets older, and he'll get 50/50 custody when she turns 3 a year from October.