This franchise continues along its curious route of serving up made-for-DVD sequels that actually improve on the 1992 original. This fourth in the 'official' series brings back Van Damme and Lundgren, but its mix of action and psychological horror follows a new protagonist played by English martial artist Scott Adkins. The Blu-ray's 2.40:1 1080p encode can be watched in 2D or 3D, with the latter working particularly well (it was actually shot stereoscopically). Extras are limited to the trailer and short interviews with the stars and director.

StudioCanal, Region B BD, £23 Approx, On sale now