The ONLY Actor Who Knew The Real Ending of Avengers Endgame

Marvel went to extreme lengths to protect the secrets of Avengers: Endgame, even giving fake scripts and altered scenes to their own cast. But there was one massive exception: only one actor was trusted with the entire script and knew the real ending from the very beginning. This video reveals the fascinating behind-the-scenes fun fact of the 'Endgame' script. We break down why Marvel couldn't risk giving the full story to known spoilers like Tom Holland and Mark Ruffalo, and the powerful, emotional reason they made a single exception for Robert Downey Jr. Discover how this trust in the man who started it all as Tony Stark / Iron Man led to one of the most iconic final performances in movie history