Ben Affleck Heads to Son Samuel's Baseball Game in Santa Monica!

Ben Affleck is all smiles as he takes his son 6-year-old son Samuel (not pictured) to his baseball game on Saturday morning (May 5) in Santa Monica, Calif.

The 45-year-old actor/director kept things cool in a red T-shirt and jeans as he cheered on his son at his game.

PHOTOS: Check out the latest pics of Ben Affleck

For the past few weeks, Ben has been in Hawaii filming his upcoming movie alongside co-stars Charlie Hunnam and Oscar Isaac.

On set, Ben snapped a selfie with his stunt double who could totally be his doppelganger!