It's fun, it's light, [but] it has a hard time when its tries to get heavy.

Fanciful, disturbing, and wildly original, it announces the arrival of a fresh, bold voice in American cinema.

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

The movie's not perfect, but it sticks the landing of its message. It was engaging - thrilling at times - and I personally thought it was a great time.