Inspired by true events, Unstoppable, director Tony Scott's final movie, stars Denzel Washington and Chris Pine as the veteran driver and rookie conductor of a freight locomotive, who, having narrowly avoided a head on collision with a driver-less, runaway train carrying toxic chemicals, decide to give chase in the hope of slowing the vehicle down and averting a major disaster.

This could have been a really solid action film—it certainly had a decent sized budget and star power—but the tedious script bogs down the action with unnecessary technical details and dull character development, while Scott's trademark directorial style—frenetic camera-work, crash zooms and rapid editing—does little to convince that the film's runaway train is genuinely hurtling along at a breakneck speed: for much of the time, it looks like it's travelling at a fairly leisurely pace. For an action movie, there's very little in the way of genuine thrills; for the most part, Unstoppable feels more like an ambitious TV movie than a big-budget blockbuster from a major director.