He was interviewed for the documentary United We Stand, Divided We Fall: The Making of Captain America: Civil War.
- He was nominated for a Saturn Award for Best Supporting Actor for his work on Avengers: Age of Ultron.
- Paul Bettany is the first actor to portray two major characters in the Marvel Cinematic Universe.
- Paul Bettany previously worked with Jon Favreau in Wimbledon.
- Paul Bettany worked again with Anthony Mackie in Shelter.
- Paul Bettany is married to actress Jennifer Connelly, who portrayed Betty Ross in Ang Lee's Hulk. Their son Stellan is named after Stellan Skarsgård.
- Paul Bettany admitted in an interview with Digital Spy in 2012 that he had a general disinterest in the Marvel Cinematic Universe and had not seen any of the films, stating that his role as J.A.R.V.I.S. was mainly for financial gain.