CBS Films and Lionsgate have issued a first look at Dylan O'Brien as the iconic Mitch Rapp from Vince Flynn's beloved novels in American Assassin. For fans of the books, this image, taken from Dylan O'Brien's camera tests, will be quite familiar. Here's what the official Twitter account for the movie had to say in a series of tweets, before the photo was released.

"A BTS image from @dylanobrien's camera test as Mitch Rapp. It's going to be a busy week for American Assassin fans. Wow, so the image is stunning but for longtime @dylanobrien fans there may be an initial shock as Mitch Rapp is a decidedly adult role. For longtime Vince Flynn fans, there will be an immediate recognition of an early moment for Mitch Rapp as he emerges into the man they know."

American Assassin follows the rise of Mitch Rapp (Dylan O'Brien), a CIA black ops recruit under the instruction of Cold War veteran Stan Hurley (Michael Keaton). The pair is then enlisted by CIA Deputy Director Irene Kennedy (Sanaa Lathan) to investigate a wave of apparently random attacks on both military and civilian targets. Together the three discover a pattern in the violence leading them to a joint mission with a lethal Turkish agent (Shiva Negar) to stop a mysterious operative (Taylor Kitsch) intent on starting a World War in the Middle East.

The film is being directed by acclaimed filmmaker Michael Cuesta (Kill The Messenger, Homeland, L.I.E.) from a screenplay by Stephen Schiff (The Americans, Ultimate Rush). Published by Atria Books and in mass market paperback by Pocket Books, both imprints of Simon & Schuster, American Assassin is one of fifteen novels set in the world of counterterrorism operative Mitch Rapp. Every single one has been a New York Times bestseller, the three most recent entries have been number one New York Times bestsellers and the series has sold nearly twenty million copies to date.

Back in 2012, Chris Hemsworth was eyeing the Mitch Rapp role before he eventually backed out. Lorenzo di Bonaventura (Transformers, Deepwater Horizon, Salt) and Nick Wechsler (The Road, Magic Mike) are producing the film. American Assassin will be the latest release in the partnership between CBS Films and Lionsgate. The movie is currently filming in Europe. Take a look at the photos, along with the tweets from the movie's official Twitter account.