Okay, so this isn’t really a question (and only scientific sticklers need read on).
There were many things scientifically wrong in Red Planet, which was why it wasn’t a very good movie. But the thing that bugged me the most is when the Matrix chick restores power to the orbiter. The computer says, “artificial gravity restored” and then, everything that’s floating suddenly and immediately drops straight down to the floor! This perpetuates the (incorrect) notion that a centrifical gravity system creates some mysterious, magnetic-like force which is just switched on and off.
First of all, even if the ship lost all power the cetrifical ‘rings’ would keep spinning for a while, only being slowed by the friction from the bearings connecting them to the rest of the ship.
More importantly, if everything was in zero-G and the rings started spinning again, anything floating (including people) would essentially remain at rest and travel in a horizontal line (perpendicular to the rings center) until in contacted something in the ship, namely the floor or something solidly mounted, where it would bounce along until it’s rotational speed created enough centrifical force for it to remain pressed against the floor.
Of course all of this is moot for a film in which the robot (which could have killed all of them in about five seconds if it wanted to) seems to think it’s in a Jackie Chan movie…