Let's cut to the chase. Lockout is derivative, clichéd, has some dodgy CGI FX work and has nothing new to add to the Sci-Fi sub-genre of future prison action movies. However, that does not mean that the movie is not enjoyable. On the contrary, if approached with the right mind set, then Lockout can be an entertaining experience, which will have you chuckling as it ticks boxes in a knowing fashion and offers some budget action and hard-boiled dialogue. It certainly isn't going to win any awards, but is does everything that a B movie should do. If you treat it as such then you won't be misled.