Most of Matthew Fox's scenes in World War Z did not reach the movie's final cut, which confirms the zombie thriller's biggest narrative problem. Based on the acclaimed novel written by Max Brooks, World War Z is a breathless roller coaster of never-seen-before zombie action scenes. Although its overarching storyline is linear and avoids delving too deep into its primary character beats, the survival flick sets one action set piece after another to keep viewers at the edge of their seats throughout its runtime.

https://screenrant.com/world-war-z-matthew-fox-cut-character-reason/