Role Models (15)

Not so much Dumb and Dumber as Bum and Bummer: Seann William Scott and Paul Rudd play emotionally stunted friends who cause a traffic accident and avoid jail by doing 150 hours' community service mentoring a couple of problem kids – potty-mouthed Ronnie (Bobb'e J Thompson) and nerdish Augie (Christopher Mintz-Plasse).

Some of the comic riffing raises a laugh, and Jane Lynch as the programme supervisor is very funny, but the new "maturity" that's supposedly inflecting gross-out comedy merely conveys the sense that the writers are getting a bit longer in the tooth.