10/17/2011 03:03 pm ET | Updated Dec 17, 2011

Mel Gibson, Oksana Grigorieva Settlement Hits A Roadblock

Oksana Grigorieva just made a beeline for family court after her settlement with Mel Gibson hit a snag ... TMZ has learned.

As TMZ first reported, Oksana and Mel struck a deal in which Oksana would walk away with $750,000, the house she's living in, and some other stuff. In return, she'll leave Mel alone. They also agreed to 50/50 custody of Lucia.

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