I watched the rest of it, though I wish I hadn't, because I was finishing up a wee bit o' work while praying my printer didn't eat it on the way out,and I was a bit knackered, too.
I probably just wasn't in the mood for watching it, but it seems to me that if Hawk the Slayer could be entertaining on a budget of 20p, something like Cube 2 has an obligation to be entertaining on its budget of several million quid.
Incidently, the only film I've never bothered to watch all the way through - and I have pretty low standards for entertainment, it must be said - was Tomb Raider: Cradle of Life. I just walked out and went to the pub around about the bit where your woman parachuted into the back of a moving jeep. I regret I didn't take this course with a great many films, it must be said.