Using a dummy, a jumpsuit and some VFX magic we were able to re-create this fun effect from Deadpool 2.
We dropped the dummy from the top of the staircase a few times. When we had a fall we liked, we locked the camera down. We took a reference photo with a phone and then positioned Chris in roughly the same position as the dummy.
From there, it was a matter of transitioning from dummy to man with masks. We added some fake-pan with scale and position keyframes to give the camera a little movement during the transition.