Originally Posted by Mocucha

Yeah, my poor english killed you...

So for example, you are keyframing a parkour. The tori jump, you put a keyframe at the begining of the jump and an other one at the landing. When you finished the keyframing, watching the replay, you notice that during the jump the tori go to high for the camera and its head go out of the screen. Pause the game at that moment, press 2 to get the freecam, move the camera with the mouse right click, when you get the right point of view, put a new keyframe.