Gwyneth to RDJ: Are you a baddie now?

Gwyneth Paltrow responded humorously to Robert Downey Jr.'s announcement of returning to Marvel as villain Doctor Doom in 'Avengers: Doomsday.' Directed by the Russo Brothers, this film precedes 'Avengers: Secret Wars.' The response to Paltrow's comments hinted at Doctor Doom's future role, and fan speculations about Paltrow's...