The first trailer for the live-action Assassin's Creed movie made its debut on May 11 on Jimmy Kimmel Live!

The trailer showcases 15th-century Spain and all of the rooftop real estate it offers to an assassin looking to ruin some target's day.

The movie, which premieres Dec. 21, follows Callum Lynch's coerced descent deep into his mind, as evil megacorporation Abstergo probes his distant memories for clues about lost artifacts.

Like other protagonists in the Assassin's Creed games, Lynch, played by Michael Fassbender, learns that he descended from a secret order of assassins. During his time learning what his ancestors knew, he starts to acquire the skills necessary to take on the modern-day version of the Templar group.

Gamers will of course recognize this premise, seeing as though it has played out over nine core games and 11 spin-offs so far. But for the movie's lead, he said he had never played the game and had to learn about its story after accepting the job.

He has played the game now, brushed up on its history and is working with the studio to "create something special," he told Entertainment Weekly.

"We believe the whole concept around it is special and want to service that the best we can," Fassbender said. "The fans are really passionate, very specific, and they expect accuracy and historical detail. We're really trying to capitalize and feed on and enjoy the fun element. We're working hard to make this something special."

While video game enthusiasts may have a bit more background on the movie than other consumers, it won't be a story they'll recognize. The movie may be set in the Assassin's Creed universe, but it has its own tale to tell.

And this might not be the last Assassin's Creed movie, as Fassbender has revealed that there's already a sketch outlining the other two parts of a trilogy. It's because, as gamers have learned, there are many different ways to prepare and rearrange the Assassin's Creed formula.

"That's what's so intriguing for people who love that universe," said Fassbender.

"We work in the dark to serve the light." Watch the new trailer for #AssassinsCreedMovie, in theaters 12.21.16.https://t.co/9bly3QDlJU

— Assassin's Creed (@AssassinsMovie) May 12, 2016