You're correct when you say it wasn't flying sideways. It resumed flying when the nose returned forward.
Right. But for an interval before that happened it was traveling perpendicular to the direction it's control surfaces are supposed to operate at, with a rather high torque engine at high power settings without losing control...
BTW FLS, for me there is nothing personal in this discussion.
I just think the behavior on this film warrants a closer look. If you could post some proofs that nail down a Corsair doing what is shown here as plausible, then that would be the best possible outcome as far as I'm concerned.
P.S. Would ya mind going on the thread labeled "Mustang" in the Help&Training section and explaining to yet another AH player that any two airplanes turn the same @ the same speed and G-load? They seem to believe YOU when you say that.