How long can you watch a dog eat a couch, bark at the lightning, run off its leash, and just simply cause havoc in people's lives? Not this long. The film is so concerned with the antics of the dog that it forgets to really focus on the other characters, who just happen to be the ones who can talk and engage with the audience. As the disillusionment of life sets in for the characters you do not feel emphatic or any form of relating. Whenever the moment comes where you may get to glimpse something of a relationship between them, something real and tangible you can relate with, Marley does something to distract from the moment. In the end all you really get is a small look at the lives of two people, the choices and sacrifices they make, a brief look at their dissatisfaction, and way to much of the dog.