These 5 star reviews are really surprising. This movie is probably the most confusing movie I've ever had to see. Complexity can be good, but not to the point where it's overbearing.
All I can explain about Tenet is that the world was at the brink of annihilation because some guy invented something which inverts anything, and there was lots of visiting the past and future. I tried paying 100% attention, but still ended up being waste of eyeballs for me
