Visible crew/equipment: When the Protagonist passes through Sator's turnstile to return to the ambush site on the highway and gets in the inverted car, a cameraman holding the camera is reflected on the wing mirror. (01:31:38)
Revealing mistake: When Millie jumps on her shop teacher's back, the teacher switches from the actor to a stunt double as they begin to tumble about. Noticeably, his hair suddenly gets much darker and has less gray in it. You can also get brief glimpses of his face, and it's obviously not the actor.