“Can I Get a Witness?” is undone by its need to explain itself, giving its characters the kind of dialogue that’s always meant to provide some backstory about how the world got to the way it is.

In spite of excellent performances from the two leads, Sandra Oh and Keira Jang, it fails to come to life and has a clunky, didactic feel, though it looks very pretty.

This is a startling film that says a lot about the state of humanity and the planet. It takes our analogies of how to make a better world to a scary extreme, and that’s why everyone should watch this film. Do we want to end up in the world of the film?

While 'Can I Get a Witness?' has an instantly intriguing premise, it fails to fulfill its potential as a fun bit of speculative fiction.