Zooey Deschanel has been cast in the rom-com 'Merv'.The 44-year-old star has signed up to feature in the film that is being directed by Jessica Swale for Amazon MGM Studios.The film centres on an estranged couple who find out that the dog they share is depressed following their break-up and decide to have an awkward reconciliation when they take their pooch on a sunny holiday to Florida to lift his spirits.Linsey Stewart and Dane Clark have penned the screenplay with Matt Beer and Roma Downey producing the picture.Zooey starred in the TV sitcom 'New Girl' as Jess Day between 2011 and 2018 but said last year that it was "too soon" for a reunion episode – even though she would love to spend more time with co-stars including Jake Johnson and Max Greenfield.She told Us Weekly magazine: "No, it's too soon. We need a little more time in between.