Jim Carrey is an actor that people either love or hate. While there's undoubtedly been films that have relied on his slapstick style and failed, this is one of the films that shows him in a much better light, mainly because it's genuinely funny throughout. Whilst relying on Carreys flexible features and physical abilities rather than the acting ability demonstrated in some of his later films (such as the Truman Show), this film has a coherent plot that would be entertaining enough with or without Carrey (the opening is a perfect, hilarious example of this). However, the eccentricity of the lead character is perfect for Carrey to showcase his physical humour. Unlike some of his poorer films that used ad-hoc excuses to show Carreys slapstick style, here his humour is cleverly deployed to enhance scenes within the storyline. His demonstration with the double glazed patio doors, his slow-play interpretation of a superbowl move, these are things that very few people can do, and even fewer can do as amusingly. Admittedly, there are a couple of scenes people could point to as being overly-crass toilet-humour, but most comedies have these. What most comedies can't offer though is the inventiveness, the variety, or the outright funniness of the humour that is not only offered in this film, but maintained throughout. Brilliant!