* Minor nitpick, but how old is Leaven supposed to be? I thought when stating she's "studying math in school" they were referring to college, but Holloway accusing Quentin of having "a thing for young girls" makes her sound quite a bit younger.
** Quentin was probably in his early-30s. Leaven is probably in her early 20s or at least 18 or 19. When Holloway says "....a thing for young girls" she's most likely referring to college age and younger. Adults in their 30s aren't usually going to be dating or marrying women in their early 20s. It happens, but it's not common for a girl in her early 20s to fall for someone 10 years their senior and that is presumably the point Holloway picks up on.
* What does Worth mean when he says that the cube was a "headless blunder"? There must have been some sort of hierarchy in place. It is plausible and highly likely that 90% of the workers on the cube had no idea what they were working on. But there must have been some sort of leadership right at the top. Otherwise why would someone spend the money on such a unique project if it had no purpose? The government doesn't just create a massive cube with killer traps inside. And who was it that designed and installed the traps? Surely they would have known that it was some highly unethical and very suspicious structure being created. Holloway might have been on to something when she said that there was a conspiracy. Or maybe Quentin was partially right as well and it was made purely for someone's sick entertainment.
** The sequels reveal Worth was wrong, and it is indeed a sinister government conspiracy. In theory though, the original idea wasn't that of a death trap-filled cube, but the order was, as he said, miscommunicated. Yes, the people who designed the deathtraps, or put people inside the cube should have known what they were doing was wrong, but they were JustFollowingOrders, and that doesn't refute Worth's point about incorrect leadership and beruacracy.
* This one relates to the prequel film, but why does everybody, including Wikipedia, insist that the ending of that film is Kazan's entrance in this one? Even ignoring the major discrepencies in actors and sets, there's no Quentin at the end of that film, and character's names are different. Isn't it more probable that the lobotomy the government puts characters through causes similar handicappedness in all subjects, and similarities in dialogue are just coincidence?