Safe House might revolve around a tediously old-hat mcguffin (a data file? please...) but it's saved by the enthusiasm of it's director Daniel Espinosa and its charismatic stars. Washington plays 'rogue' CIA agent Tobin Frost with a wolfish charm and a manipulative streak that keep you wondering whether he's as traitorous as its claimed. Ryan Reynolds plays his junior CIA agent dead straight, without any of his usual lighthearted comedy. This makes for a wise choice, giving Denzel all the rogueish charm and letting us root for Reynolds as the scared rookie in over his head.
Espinosa is a good choice for director, and handles the initial safe-house assault (and a lengthy car chase) with a fantastic sense of tension and rhythm. The violence is loud and stunning, and the use of sudden flickers of lighting and bursts of movement make it feel full of dramatic impact.
The car chase is superb, and one of the highlights of the movie due to skillful direction and whip-fast editing. However, Espinosa does occasionally slip into 'shakycam' fanboy territory, getting up too close, and too shaky to properly convey what's going on. To begin with this adds to the atmosphere, but it gets intrusive. Luckily he quickly calms down.
On the topic of filming, the film has a similarly grainy 'real world' look to Matt Damon's 'Green Zone', and so although the dominant saturated colours of black, orange and brown used in almost every scene make the landscape and action look gorgeous, I wouldn't expect Blu-Ray to offer many benefits over DVD.
The supporting cast are uniformly good, the plot is serviceable, and the film keeps moving at a fast enough pace to remain exciting. It also managed to make the audience I was with jump at least 4 times with sudden shocks.
Good fun, with a colourful and varied South-African setting and some very decent action set-pieces. A good choice as a straight-faced and violent spy action movie.