Jack the Dog(2001)

Jack is a dog. When he's not photographing women, as a profession, he's seducing them. Until now. Home from Paris, he feels empty and fed up with his promiscuous lifestyle. With his pal Buddy as a witness, Jack vows to find love and settle down. Jack keeps his word and marries Faith, but it's hard to teach an old dog new tricks. Even though they've had a child together, Jack soon falls into old patterns. He does his best to hide his infidelity, but Faith is not fooled. She leaves him, and takes their son Sam with her. Realizing how important Sam is to him, Jack pulls his act together and wins custody. Getting to know his son on a new level, Jack finds the one thing he's been longing for: pure, unconditional true love.