From Collider:
What would the MCU be like if Tom Cruise was Iron Man? Using deepfake technology, we replaced Robert Downey Jr.’s performance throughout the Marvel Cinematic Universe – from 2008’s Iron Man to Avengers: Endgame – with Cruise. This is DEEPFAKE THEATER.
Robert Downey Jr. was perfect in the role, but I guess Tom Cruise would not have been such a bad choice?
[Collider]