I don't know if Reagan's popularity as an actor would have changed the name in the Exorcist from Reegan to Raygan. Many people in the entertainment industry at the time pronounced the actor's name as Reegan and he had to do a bit of rebranding to get everyone to say Raygan when* he ran for President (apparently this was Nancy's idea). There was a period where opponents would purposely pronounce his name Reegan but he did win the vote so that died out.
*Not sure when the pronunciation change happened but he married Nancy in 1952, lots of time to shift it before The Exorcist!
This message was edited 9/2/2024, 4:18 AM