Jason Lee: Do You Take This Woman?

Camden County's most famous resident looks set to walk down the aisle.

Multiple TMZ spies spotted Scientolostar Jason Lee and his pregnant GF, Ceren Alkac, in line for a marriage license at the Norwalk, Calif. courthouse this afternoon -- and one of 'em snapped that snazzy pic of Lee on the left.

Ceren is due with the couple's first child in the fall. Lee has a son from a previous relationship -- famously named Pilot Inspektor.