'World War Z' trivia and fun facts
Max Brooks publicly stated that he felt the film had very little in common with his book beyond the central storyline.
A storyline that was deleted featured Gerry's wife having an affair with the para jumper from the helicopter from the rescue scene earlier in the film.
Ed Harris and Bryan Cranston were originally cast in the movie, but both dropped out due to scheduling conflicts.
Damon Lindelof and Drew Goddard rewrote the screenplay in the middle of the production to create a whole new different third act.