In a new video from Collider the Assassin's Creed movie director Justin Kurzel introduces an alternate ending for the adaptation. It didn't make the cut because of test audiences, but you could argue that the slightly bleaker end would have made for a stronger film.
The scene sees Cal, played by Michael Fassbender, massacring an entire group of assassins. Because the scene never made it to the final film you can still spot the wire rigging and green screens.
According to recent reports Fassbender has already signed up for Assassin's Creed 2 with Corey May writing.