Tom Cruise portrays Claus von Stauffenberg, a Nazi officer who wears an eye-patch, as he assumes this character. Suffering from significant injuries, he is sent back to Germany and promptly gains a position with regular access to a pleased Führer, played by David Bamber. His arrival occurs at the same time that many politicians and military personnel are beginning to understand their prospects of victory were fading and that action needed to be taken regarding the removal of their anxious Chancellor in order to establish a new government capable of securing some form of peace agreement. However, certain members of the High Command remained deeply devoted, so von Stauffenberg and his associates had to proceed cautiously, unsure of who could be trusted while they moved forward with a risky scheme that would constitute treason if unsuccessful. With a rather uneven cast primarily composed of British actors, Bryan Singer manages adequately with his leading man, but the film suffers from a lack of suspense as it starts slowly and meanders along before gaining some energy in its final twenty minutes. Cruise’s usual charm seems to vanish here, and honestly, he doesn't possess the necessary weight to make this portrayal believable—and that applies to Bill Nighy, Tom Wilkinson, and even Kenneth Branagh in his brief appearances. The entire production has difficulty conveying the intricacies and dangers encountered by these conspirators, both those who were truly courageous and those who were simply trying to protect themselves. The specifics of their “Valkyrie” plan are only addressed on a surface level, and considering we already know how events unfolded, the film provides little that is genuinely engaging. It’s rather disappointing, I must say.

Source on TMDB