Watch Merv for Free: How to Stream the Movie Online at 123Movies. . A contemporary comedy about ex-couple Russ and Anna, who discover that Merv – the dog they share custody of – has become depressed due to their breaking up. Attempting to lift Merv's spirits at Christmas, Russ takes him on a "boys' trip", leaving freezing Minnesota for a dog-friendly beach in sunny Florida. Anna unexpectedly shows up, rekindling romantic feelings.