u/Critcho already mentioned the speedy turnaround time for Spielberg’s WAR OF THE WORLDS in 2005 but it should also be mentioned that his film MUNICH, also from 2005, began filming the day that WAR OF THE WORLDS came out (4th of July weekend), finished shooting by the end of August, was edited by October, and had score and sound effects finished by November. It came out Christmas that year, less than half a year from the first shot to the first showing, and it wasn’t even a scramble for The Beard.