If you want to watch Merv, the simplest answer is: head to Prime Video. The film is an Amazon MGM Studios romantic comedy that landed as a Prime Video exclusive and premiered directly on the service on December 10, 2025 — there was no separate theatrical release or staggered window to keep track of.

Merv is built around a very specific, very winning premise: exes Anna and Russ (played by Zooey Deschanel and Charlie Cox) are forced back into each other’s orbit when the terrier they co-parent slips into a doggy funk after the breakup. The human leads carry the movie, but according to early press and reviews, the canine, Gus (credited as Merv on screen), is the emotional center and a big part of the movie’s charm.

Watching Merv means having Prime access. Prime Video is bundled into an Amazon Prime membership in most markets, which comes with monthly or annual billing options. If you’re not already a member, Amazon advertises a free trial window for new members in many countries, which will give you immediate access to Merv and the rest of the Prime library during the trial period.

So what does that mean practically? If you’re already a Prime subscriber, Merv is ready to stream now — pick your device, press play, and expect a warm, holiday-adjacent rom-com that leans heavily on canine comedy and small reconciliations. If you’re not a member, you can sign up for the trial (or for one of Amazon’s discounted plans if you qualify) and get instant access without any rental fees. The “straight-to-streaming” release means there’s no extra charge beyond your subscription.

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Critically, Merv isn’t trying to be a game-changer — reviewers describe it as comfortable, deliberately cozy holiday fare that will please dog lovers and viewers looking for a low-stakes, feel-good watch. Outlets that reviewed the film praised the animal performance and the chemistry between the leads while noting a familiar, by-the-numbers rom-com structure. If you want something that’s quiet and easy to sink into around the holidays, this is the sort of title that fills that niche nicely.

In short, you can only watch Merv on Prime Video, it arrived there on December 10, 2025, it’s fronted by Zooey Deschanel and Charlie Cox with a terrier stealing big chunks of the show, it runs about 105 minutes and is rated PG — and if you don’t already have Prime, Amazon’s free trial and discounted membership options are the usual ways people get access.