With his directorial forte, David Fincher has achieved both big and small-screen success, but many aspects of his filmography suggest that World War Z 2 was not the right movie for him. Based on Max Brooks' novel of the same name, World War Z's production was marred with many setbacks, including creative conflicts and numerous delays. As a result, it went through extensive rewrites and re-shoots before hitting the theaters, which ultimately increased its production budget to an alarming $190 million.
https://screenrant.com/world-war-z-2-david-fincher-not-happening-good/