review 
Mr. Washington himself excels at playing dangerous men, but in Mr. Scott’s films he plays men of conscience. Such is the case in “Unstoppable,” where, with the volume turned down, he portrays the calm, seemingly unremarkable Frank Barnes. A veteran engineer who’s been making runs on Rust Belt tracks for three decades, Frank is less a character than a collection of bits and pieces pointing to an idea of character. He wears reading glasses. (He’s middle-aged.) He has a pair of daughters he openly adores. (He’s fatherly and cares for others). He’s a pragmatist. (“This ain’t training. In training they just give you an F. Out here you get killed.”)