http://www.playstationlifestyle.net/2013/03/15/dead-space-3-moves-605000-copies-in-february-crysis-3-does-260000/
Launching on February 19th, Crysis 3 managed to shift 260,000 copies in its 12 days of being available during the February sales period [...] It is important to note that both of these games were available on both Origin and the PlayStation Network on launch day, and since the NPD doesn’t have access to exact digital numbers, overall sales for each title are higher than 605,000/260,000.

If Crytek would have made a movie instead of a game and release it on theatres, it would have sold more than that. Of course it should be more plot driven and be adjusted for a movie series. However it could be epic rather than this mess, possibly cost less and demonstrate the power of the engine quite as well...