Once the stage is set Alien vs. Ninja becomes an enjoyable ride, complete with maximum bloody carnage and the occasional sprinkling of humour. The sixty minutes that follow are littered with insane set pieces and bloody battles, as any suggestion of plot development is dropped in favour of fisticuffs and exploding heads. It’s clearly not art, but there’s a certain amount of fun to be had from a film as clearly signposted as this. It doesn’t compare favourably to the likes of The Machine Girl, few splatter-fests do, but it’s a lot less disappointing than the film on which it’s based. I say based - I say it very loosely.