As much as I love Terry Gilliam I find his films like Zero Theorem and even Brazil very challenging to watch the whole way through. I always think they are absolutely genius for the first 30 minutes or so then my interest always starts to slowly fade.
Similar to most of the Monty Python films.
It's like a desert you can only eat in small batches but delivered in full cake size.
... I disagree on the Monty Python films, I find they're generally well-paced and can be enjoyed all the way through.
Gilliam's serious films, on the other hand - yeah. The main needs to listen to his editors. Every time I watch a Gilliam movie, especially a director's cut, I'm always frustrated how much his movies drag through the 2nd act. The man needs to learn some brevity, but at his age he's obviously made up his mind that the audiences need to absolutely wallow in his beautiful imagery.
Similar to most of the Monty Python films.
It's like a desert you can only eat in small batches but delivered in full cake size.