Casey Affleck, 47, cozies up to glamorous girlfriend Caylee Cowan, 24, at the amfAR Gala in Venice

Casey Affleck, 47, passionately kisses girlfriend Caylee Cowan, 24, at Venice Film Festival

Zooey Deschanel Joins Casey Affleck at the 'Dreamin' Wild' Photo Call in Venice

Casey Affleck & Caylee Cowan Hold Hands While Arriving in Venice