Walmart has the Marley and Me The Puppy Years BluRay for $15.00.
They also have a Marley and Me DVD 2-Pack for $15.00.
You might be able to pair these with some popcorn and candy to make a cute movie night gift basket. You could also add a Marley and Me Book that the movie is based off. Target also sells some of the children’s books for $4 or less in-store.