It’s an especially fun movie from a director and cast who are clearly having a good time allowing themselves to let loose.

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

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

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