Rotten Tomatoes: 14% When John Cusack is turning his nose up at the idea of participating in a film project, you have to suspect something is fundamentally wrong with it. The major problem for the sequel is that it's just not very interesting, and there's not even the slightest hint of mirth to sweeten that deal. Quite how a film this unfunny can actually still market itself as a comedy is beyond conventional logic. Probably driven on by the success of the Hangover sequels, Hot Tub Time Machine feels like a cynical money grab that fundamentally forgets what made the original so good. Instead of Cusack's downbeat lead (a role he's played well since his youthful late 80s heyday), Rob Corddry's distasteful sidekick is fatally given centre-stage. Unfortunately for him, the fact that the whole point of the film's jaunt to the future is to solve his murder is fatally undermined by the fact that we'd probably all be better if he stayed dead.