With a high FPS (in movies), each frame is less blurry, everything becomes sharper hence the 'uncanny' feeling.
And you can't compare video games and motion pictures - there's no blurring in video games at all. (Take a screenshot in them, compare and you'll see why)
Most video games since a few years ago render frames with a degree of artificial motion blur to simulate speed. This is particularly the case with racing games but also exists in first-person shooters (moreso on the PC than on consoles, since rapid mouse movements translate to rapid screen motion).
Are you think of in situations (shooters) where you get like hit by a flashbang and your screen goes all blurry and shaky? That kind of blur? Or is the blur happening during just 'normal' firefight/gameplay all the time?
No, not that kind of effect; there is genuine "motion" motion blur available in games in response to rapid movement (e.g., sprinting in Battlefield or Mass Effect - the scenery closest to the player [and therefore moving most rapidly relative to them] blurs in the appropriate direction) or rapid orientation change (Portal 2 does this; I think Mirror's Edge did so also).
With a high FPS (in movies), each frame is less blurry, everything becomes sharper hence the 'uncanny' feeling.
And you can't compare video games and motion pictures - there's no blurring in video games at all. (Take a screenshot in them, compare and you'll see why)