Time Out says
Finally! The movie we've all been waiting for! Well, not exactly. But while the thought of a feature-length story about that friendly neighbourhood postie and his black and white cat doesn't exactly get us excited, it doesn't sound like a chore either - one for the toddlers, a nice bit of old-school animated whimsy. Except that's not this movie. The (as yet unconfirmed) full title is rumoured to be 'Postman Pat: The Movie – You Know You're the One', and concerns Pat's attempts to get on a TV talent show. The appearance of Jim Broadbent, Rupert Grint and Stephen Mangan in voice roles reassures us somewhat, because otherwise, this sounds truly, truly horrible.