Elton has written on his Instagram page about a film he can't wait to see.
He explains that Battle of The Sexes features Rocket Man on its soundtrack and tells the story of his ''friend, loyal EJAF supporter and inspiration behind Philadelphia Freedom.''
The movie is based on the 1973 match between Billie Jean King and Bobby Riggs.
The lead roles are played by Emma Stone and Steve Carell. It opens on the 29th of September, and at select theaters the week before.