Ryan Gosling
The Exorcist is widely known as one of the most famous horror movies ever. It has been recognized by the Library of Congress and entered into the National Film Registry as it is considered “culturally, historically, or aesthetically significant.” Given this, I find it easy to believe the claim about Ryan Gosling.
However, some might think he is simply pretending to be Regan, the character from the horror film. Regardless, it appears that Gosling enjoys playing elaborate pranks, which is relatively harmless compared to some of the bizarre things other celebrities have done. Reacting to movie scenes is a fun and harmless way to entertain oneself.