Ailing Sir Elton John is reportedly in talks to make a cameo in a fight scene in director Matthew Vaughn's new movie.

The rocker, who is currently recovering from appendicitis, is slated to join the cast of The Secret Service, opposite Colin Firth and Michael Caine.

Star Wars icon Mark Hamill is also being sought for the film, an adaptation of author Mark Millar's violent comic book of the same name, according to British newspaper The Sun.