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

The movie runs out of plot and jokes well before the end of a two-hour running time, long for a light comedy.

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.

It's simply great fun, a winsome film and an occasionally over-the-top luxury fantasy that never flags.