AceShowbiz -

Ubisoft and 20th Century Fox have released a new sneak peek at Justin Kurzel's "Assassin's Creed" ahead of its release. It offers fans behind-the-scenes look as well as commentaries from the helmer and Oscar nominee Michael Fassbender, who plays the lead character Callum Lynch/Aguilar de Nerha.

"The 'Assassin's Creed' universe just seemed like something that would lend itself nicely to a cinematic experience," Fassbender says. "When you put on the costume, you really feel like the character," he shares, adding that the "weapon of choice" for him is the hidden blades on his wrists, the signature weapon of the Assassin.

The featurette also shows the immense amount of practical effects and stunts used in the movie. "In an era where there's a lot of CGI, we wanted to have as much old-school real location shoots as possible," he reveals, before explaining that the parkour element is very important as "fans are going to be looking for that."

Kurzel says, "We're really determined to make an audience believe that this world and these characters exist." The director adds that he wants the movie "to be an unbelievable ride mixed with these exotic worlds" which leads the audience into some stunning, "dynamic" action sequences and an "immersive experience."

Set to arrive in U.S. theaters on December 21, "Assassin's Creed" centers on Callum Lynch who discovers he is a descendant of the secret Assassins society when he explores the memories of his ancestor Aguilar and gains the skills of a Master Assassin.

The action flick is set in the same world as Ubisoft's "Assassin's Creed" video games, but is not a direct adaptation. It's supported by Oscar winners Marion Cotillard and Jeremy Irons as well as Michael K. Williams, Ariane Labed and Brendan Gleeson.