It's not great by any means, but it's a pretty good movie that didn't leave me filled with regret for investing time in it.

It's hard to see any effort in the film. There's no comedy to speak of, no real drama and, worst of all.

If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

This is a must-see and one of the best documentaries - and films - of this year.