If you have seen the trailer for this film you know exactly what is going to happen in it: runaway train with highly explosive cargo heads towards built up area with only two gutsy railwaymen and their underappreciated female manager between it and disaster! Indeed, even if you haven't seen the trailer you could probably sketch the back story of every character in the film and how these stories are going to resolve just based on the 25 word summary I have just given.
That said, over the past 6 months I have found few more entertaining ways to spend a few hours in the cinema. Denzel Washington, Chris Pine and Rosario Dawson are typically charasmatic in roles that don't tax them excessively but which they deliver effortlessly, and the predictability of the movie strangely adds rather than detracts from the tension.
Perhaps not a classic, but crowd-pleasing enterainment, professionally done and almost guaranteed to leave you with a smile on your face.