San Andreas is an awful movie, but given how helicopter-centric its plot is I'm wondering if they even got the autorotation landing correct? In the middle of the movie the hero is cruising in (I think) a Bell 412 when the engines fail. He tells his passenger they're going to autorotate, and he proceeds to do the following maneuver three times: Precipitous pitch down, then after picking up a lot of speed, a flare. (The final "landing" flare is attempted in a crowded parking lot where he tries a last-second evasive maneuver that destroys the helicopter.)
My understanding is that a proper autorotation always simply consists of pitching to a specified glide path and not changing pitch until the landing flare. Do any conditions or rotary-wing vehicles call for a different autorotation maneuver?