In Infinity War, the alien despot Thanos must acquire six gems of unimaginable power called the Infinity Stones. Now, even the efforts of Iron Man, Thor, Captain Steve Rogers, Spider-Man, Black Panther, Doctor Strange, the Guardians of the Galaxy, and many other heroes may not be enough to save the day.
The film was announced in October 2014 as Avengers: Infinity War – Part 1. The Russo brothers came on board to direct in April 2015 and by May, Markus and McFeely had signed on to write the script for the film, which drew inspiration from Jim Starlin’s 1991 The Infinity Gauntlet comic and Jonathan Hickman’s 2013 Infinity comic. In 2016, Marvel shortened the title to Avengers: Infinity War. Filming began in January 2017 at Pinewood Atlanta Studios in Fayette County, Georgia, with a large cast consisting mostly of actors reprising their roles from previous MCU films, including Brolin as Thanos. The production lasted until July 2017, shooting back-to-back with a direct sequel, Avengers: Endgame. Additional filming took place in Scotland, England, the Downtown Atlanta area, and New York City. With an estimated budget in the range of $316–400 million, it is one of the most expensive films ever made. (Source: Wikipedia)