Anyway, back to the topic.
image taken from here
Starring: Denzel Washington, Chris Pine
To me, Unstoppable is similar to Taking of Pelham 123 (with the same leading actor, for your information). Its about people trying to stop a runaway unmanned cargo train (which carries toxic chemicals) from destroying the towns.
Frank (Denzel Washington) and Will (Chris Pine) take the risks to try to slow down the cargo train with whatever they can do...
(Of course the ending is good la :P)
Personally, I like Denzel Washington's movies. He's a professional actor and I think most of his movies are more realistic ;)
this movie is very action packed, not boring at all!