Eagle Eye
The "cell phone thriller" is becoming a genre unto itself, and Eagle Eye should be considered a key example of the form. Frankly preposterous but compulsively watchable, this movie puts Shia LaBeouf in a mess of trouble instigated by a mysterious telephone voice. If he doesn't follow orders, dire things will happen--although when he does follow orders, the consequences are pretty dire, anyway. Also being blackmailed is a single mom (Michelle Monaghan) receiving similar phone calls.
