So inane that not only is adult enjoyment unattainable, even younger audiences will be on to its lack of intelligence and novelty.

Well and truly aimed at kids, Planet 51 is a film they will thoroughly enjoy yet which any accompanying adult will have lots of laughs in too.

Just how much of this will be appreciated by children is questionable, but the film is clearly intended to keep them happy with lashings of colour, movement and cheesy jokes while older, diehard geeks can enjoy all the reference spotting.

Maybe there are a few that can sink even lower than this, but Planet 51 is easily one of the worst animated sci-fi movies on the planet.