Not true. His head initially goes forward for an instant. His chin then impacts his chest and can go no further forward at that point. Clearly visible looking at the film frame by frame.
Except now you’ll leap to: “Well, the film was tampered with!”
Then after that, something else, and after that.....
Right? :)
No I don’t think it was tampered with, like countless other posters have stated, “what am I supposed to do, believe my lying eyes”.
His head clearly snaps backwards and to the left.