The 1994 film “Speed,” which was released to critical acclaim, more than lives up to its title. Because this movie goes at such a rapid pace, it is possible to miss anything significant if you are not paying close enough attention. As a result of an overhead light, Payne is decapitated during the “duel” between Jack Traven and Payne.
In that scene, Dennis Hopper was replaced by a dead dummy, which you can see if you rewind the movie and hit the pause button again. This is not new to the movie creators and the production houses to replace some character with the dead dummy but yes they pictured it so finely that we definitely missed it