This was improvised because Harrison Ford was very ill during this shot; and decided to just shoot the guy. The other guy didn't expect that.

Pissed the swordsman off too. He'd trained for weeks. I'm surprised there's no special edition where he "shoots first."

Yeah he had like a hard core fever. that sweat on his shirt is not fake. he really was super sick. The director felt it fit better!

He didn't adlib the shot. He suggested the change to Spielberg before shooting the scene and Spielberg agreed to it. The other guy knew.