Sounds like UbiSoft is considering an Assassin's Creed movie: they sent out a survey asking fans what game should be adapted into a movie, and Assassin's Creed was listed. Don't get your expectations too high yet though, there's no official plan yet to develop a movie based on Assassin's Creed. But the fact that they're testing the waters is encouraging.
For those who don't know the Game Assassin's Creed is a mixture of action and adventure with a heavy emphasis on stealth in open world recreations of historical cities. The main story arc of the series revolves around a bartender named Desmond Miles as he is captured by megacorporation Abstergo Industries (a front for the Knights Templar). Using a machine known as the Animus, Desmond is forced to relive his ancestors' memories, who were all assassins, in order to recover artifacts, called the 'Pieces of Eden', for Abstergo.
UbiSoft actually already produced an animated short film based on Assassin's Creed, watch it below:
The game does have a compelling story that totally deserves to be adapted into a feature film. Let's hope that UbiSoft will go ahead with a live-action movie adaptation of Assassin's Creeds.
Anyway, more information about the movie Assassin's Creed as soon as details emerge.