Read the book!

It's on its face a rocky horror-esque watch. The odd pacing, the unintentional mistakes, the inhuman line reading, all centered around a man who looks like the missing link between man and fungal spore. I'm confident you could make penicillin with whatever comes out when you brush his hair.

The book 'The Disaster Artist', written by Greg Sestero (Mark, in the film), is one of my favorite reads and has been since 2012, when it came out. It goes into depth not only on the awful production aspects of the film, but on the strange characteristics of Mr. Wiseau himself. He orders hot water as a drink for every meal. He has a poster-sized framed picture of aladdin above his toilet. He adamantly refuses to mention anything that could even vaguely relate to his age- and the movie poster is a black and white kubrickian portrait of his bloodshot, asymmetrical face.

This is a movie to watch on drugs. Or with a friend. Or in a crowded theater of people who are playing along. Or with the context of the book. Otherwise, I'd advise you avoid watching it until you have one or more of those things.