How does it rank against the other three films? Well it's possibly the best TF movie since the 2007 original. Long, yes; occasionally incoherent, (Mark Wahlberg seems to ignore full stops in his script), and it features some awful CGI - the enemy robots are made from gravity-defying blocks that appear to have no weight or heft, making them look like a bad video game cut scene.
The first third of Riddick drags like a wet bank holiday Monday, or a party political broadcast in bullet time. Despite being stranded on a planet full of a ravenous dingo-type predators, our hero manages to fend them off, pinches one of the cubs/puppies (reminiscent of Scrappy-Doo in the Scooby-Doo live-action version), and clashes with assorted scorpion-like beasts.
If you're a voracious science fiction reader you'll be well aware that the traditional print publishing houses aren't capable of keeping up with your demand for quality books. Even more so, you'll be aware that when it comes to science fiction series the wait between releases can often be painfully long.