This is awsome news. I heard about this last year but figured it would go into development hell like the halo movie. The doctors and Casey Hudson are the producers so hopefully it wont be crap like all the other movies based on games. It is believed that it wont be based off of mass effect 1, which is good in my oppinion(i mean how would they make that into a 2 hour movie, maybe if they split it up into 2 movies they could make it)
some of the artice:
" In May 2010 Legendary acquired the Mass Effect movie rights and immediately asked Protosevich to pen the script. According to the film's producers (via subscription-based IMDB Pro), the film will tell the backstory of the Mass Effect games and mankind's discovery of Prothean ruins on Mars. Based on the game's lore, humans will in turn discover FTL travel and the Mass Relays, leading to their initial encounter with the Turians and sparking the First Contact War.
The movie is expected sometime in 2012. ComicCon kicks off on July 21 and runs through the 24th in San Diego. "
Halo MCC will sell 5+ million copies(including digital)
halo 5 will sell 10 million copies(including digital)
x1 will pass ps4 in USA, and UK.