New Iron Maiden documentary Burning Ambition is out on Thursday (May 7) – but NME readers can check out an exclusive clip above, featuring fresh interviews with some huge rock stars. Directed by Malcolm Venville, Iron Maiden: Burning Ambition celebrates the heavy metal band’s 50th anniversary. As well as footage from the archives, the film includes talking head chats with members of Iron Maiden. Some of their famous fans, including Rage Against The Machine ’s Tom Morello and actor Javier Bardem, also reminisce about the group’s ongoing influence on music and culture. Ahead of the doc’s imminent release, fans can check out a new clip which explores the importance of Iron Maiden’s skeletal mascot Eddie, who’s appeared on the front cover of every one of the band’s 17 studio albums and is a staple of their acclaimed live show. “The thing about Eddie is that he could transcend generations. You could always lure a new head in with a character.…