Help with errors when playing cinematics¡¡¡¡ :-( (ayuda)

When begins a cinematic I hear the beginning of the sound but the game will close, first I tried removing the cinema to start the game and it worked, I entered the game, but I cant play the campaigns because it begins with a video, that file crash my game.

I think the .webm format is the problem, somebody know how can I fix this??

I use Win 7 Home Premium

Video Card Radeon ™ HD 7690M XT
P: Intel Core I5
8 RAM
DirectX 11

Uninstall 3rd party video codecs like ffdshow or any codec packs. If that works you can likely configure the offending codec to not interfere with the game.