In case you didn't know: Coherence is almost entirely improv - there was no script, and it was shot in just 5 days. I don't tell people before they watch it, because you can't tell. The cast each got a notecard each day of shooting, but they had no idea what was coming, and even were fed lies about the others.

> "We shot over five days, and instead of a script I had my own 12-page treatment that I spent about a year working on. It outlined all of the twists, and reveals, and character arcs and pieces of the puzzle that needed to happen scene-by-scene. But each day, instead of getting a script, the actors would get a page of notes for their individual character, whether it was a backstory or information about their motivations. They would come prepared for their character only. They had no idea what the other characters received, so each night there were completely real reactions, and surprises and responses. This was all in the pursuit of naturalistic performances. The goal was to get them listening to each other, and engaged in the mystery of it all.

> ...They were completely in the dark. All the surprises you see are real... You’re improvising along with the actors as a director, and cameraman. My DP, Nic Sadler, and I told them, 'You can go anywhere you want in the house and we’ll follow you. We’re not going to rehearse it or block it.' We just treated it almost like a documentary unfolding in front of us."

Source, and spoilers: https://www.indiewire.com/features/general/how-gotham-nomine...

Woah! I knew it was improv, but didn't know it took just 5 days! I'm convinced Coherence trivia is as interesting as the movie.

A person that can appreciate Nolan’s Tenet gets automatically befriended by me.

Likewise:) But the more I watch it, the more I understand why it was labelled as 'pretentious' by first-time watchers.