Ben Affleck scored some major Dad Points Thursday night ... not only did he snag he and his kid some better seats than Kamala Harris for the Lakers game -- he also got Steph Curry to swing by for a meet-and-greet!
Ben and little Samuel Garner Affleck scored some courtside chairs for L.A.'s home tilt vs. the Golden State Warriors ... and the two seemed to have a blast as Curry and LeBron James duked it out on the floor.
The guys were seen cheering often .