Who Will Team Up With Colin Firth in Matthew Vaughn's 'Secret Service'?

20th Century Fox and Matthew Vaughn's "The Secret Service" looks to be heating up as Vaughn is on the hunt for a young actor to join Colin Firth in the comic book adaptation. Sources tell Variety "300: Rise of an Empire"'s Jack O'Connell, "Attack the Block"'s John Boyega and "Magic City"'s Christian Cooke have or...