WHAT I LIKED: What's amusing about the TV show upon which 'The Inbetweeners Movie,' is based is not that we watch with pity in vague disgust as a group of teenage boys dick around, it's how that unlocks some commentary on the ridiculous ways that many of this age group feel they're expected to behave. In the film then, the best moments are predictably those where the group find themselves struggling with those expectations, and the fact that they are on a lads break together is a pretty great tool for that stuff to work too.
WHAT I DIDN'T LIKE: The only trouble is that those comedic legs aren't nearly enough to carry a whole film, as whilst there are some funny moments, there's not really an engaging narrative or even any particularly engaging characters to keep you hooked from start to finish. As a result it winds up as yet another TV-comedy to movie adaptation that doesn't successfully move beyond the boundaries of its widely-enjoyed source material.
VERDICT: A film adaptation with much of the comedic appeal of its TV source material but not nearly enough legs to carry its full length, 'The Inbetweeners Movie,' is fine entertainment, but it's not a particularly brilliant film overall.