Liev Schreiber shoots scenes for upcoming film on a speedboat in Venice

Liev Schreiber, 53, and his girlfriend Taylor Neisen, 27, walk their pet dog Scout in Venice

Liev Schreiber, 53, and his girlfriend Taylor Niesen, 27, head out shopping in Venice

Liev Schreiber chows down on pizza and beer at an outdoor cafe in Venice, Italy