Rat is a bizarre but fun little film. Pete Postlethwaite is the hard-drinking father in an Irish family. One night he comes home drunk, and while his wife is berating him he turns into a rat, a cute little brown rat who's argued over by the family: should they kill him? give him away? keep him as part of the family? The film is a deadpan comedy, and the actors make it work very nicely. Frank Kelly is fun as vastly knowledgeable Uncle Matt, and Imelda Staunton is hilarious as the long-suffering and nagging wife, whether she's singing or helping dry the rat out after too much Guinness.