Owen Wilson, Jennifer Aniston, Eric Dane, Alan Arkin
Much like any other dog, Marley is a canine on a mission: A mission to ruin lives and breed evil. Well, at least in the minds of John and Jenny Gorgan that is. From the rambunctious behavior to the acts of public indecency, Marley is easily one of the worst dogs to ever be allowed indoors. But as time flies by, and the overly active pup begins to age, his rowdy antics grow on his adoptive family, making for one of the most touching and relatable films of 2008.