Game of Thrones star Richard Madden is in negotiations to join the cast of Elton John biopic Rocketman.

To be directed by Dexter Fletcher from a script by Lee Hall, the film will feature Taron Egerton as the legendary singer.

If finalised, Madden, 32, will portray John’s former manager, John Reid, who oversaw the career of the “Rocket Man” singer for over three decades starting in the 1970s.

Madden, who became a household name after playing Robb Stark on “Game of Thrones”, will be joined by Jamie Bell as Bernie Taupin in the project.

Matthew Vaughn and his Marv Films will produce, along with John and his Rocket Pictures partner David Furnish.

Fletcher, who previously worked with Egerton on “Kingsman” films and “Eddie the Eagle”, is currently awaiting the release of “Bohemian Rhapsody”, the biopic on legendary Queen singer Freddie Mercury.