It’s quite the busy and fertile period for comic book writer Mark Millar. Not only is he helping to mastermind the Fox-owned corner of the Marvel cinematic universe, many of his more provocative works (such as Kick-Ass 2) are making their way to the silver screen.

One of the most promising of these creator-owned adaptations is The Secret Service, the story of an international super-spy who takes a hotheaded English street kid under his wing and begins to train him in high-level espionage. Overseen by director Matthew Vaughn (who previously helmed a Millar adaptation with the original Kick-Ass), The Secret Service is currently assembling a formidable cast – one that has been confirmed to include screen legend Michael Caine (The Dark Knight Rises).

/Film reports that Caine has agreed to sign on as one of the principals in The Secret Service. He joins a cast that includes the previously confirmed lead, Colin Firth (Tinker, Tailor, Soldier, Spy). Apparently, Caine will play the head of the secret spy organization central to the film.

Meanwhile, Variety asserts that relative newcomer Taron Egerton is in talks to portray young “chav” street-tough-turned-recruit Gary. Rumors have swirled for some weeks as to who will put on the character’s cap. While not a complete stranger to acting in front of a camera, Egerton is best known for his roles on the British stage and for a guest appearance on the ITV crime serial Inspector Lewis. The Secret Service would be his first appearance in a feature film.

While he has not been completely confirmed for his proposed role, Egerton is much more of a lock than the actresses rumored to be in the running for The Secret Service’s primary female role. Vaughn is rumored to be pursuing either Emma Watson (The Bling Ring) or Bella Heathcote (Dark Shadows) for the part.

Watson is probably the preferred pick of the pair, given her lingering star-power from the Harry Potter franchise and praise she’s recently received for her roles in films such as This is the End. Heathcote has demonstrated that she’s no dramatic slouch, but Watson would definitely bring a known face to a film that already features two bankable stars in lead roles.

No matter the outcome of the casting search for the “younger half” of The Secret Service’s ensemble, the film is shaping up rather interestingly. If Egerton agrees to take up the role of the movie’s young protagonist, we may see the flowering of an early career – much as Kick-Ass signaled the breakout of Aaron Taylor-Johnson (Godzilla) onto the international stage. Naturally, we at Screen Rant will continue to keep a close eye on the project.

The Secret Service will infiltrate theaters on November 14th, 2014.

Source: /Film, Variety