If you took Escape from New York and gave it a Sci-Fi touch-up you would probably end up with Lockdown. That’s not a bad thing, since I really enjoyed EfNY when I saw it as a kid. I thought Lockdown was a fun action film. It doesn’t push the boundaries, but what it does, it does pretty well.
Overall I would say lightweight, but quite enjoyable.
I’ve been playing catch-up this week. Of the four films I’ve seen I think I enjoyed this one the most.