The Zombies in the Movie

There are numerous stunts where like a sort of roundish man goes through a plate of glass window in this movie. One of the guys did this I think pretty much the same stunt in the Wizard of Oz as the cowardly lion so I guess it was just like printed on this guy's business card. The zombie grabs Hennessy lifts him up over his head and then we see only a shadow of the two figures cast upon the wall  in the shadow the zombie just folds Hennessy like a wallet he just snaps him in half backwards like a Kit Kat bar crunch It is brutal.