Corrected entry: At the beginning the Red Queen said that the last human settlement will fall in 48 hours unless Alice releases the anti-virus, however when Alice does release the anti-virus (a few seconds before the timer ends) she says it will take years for it to reach around all the corners of the globe, this does not make sense and implies that the last human settlement will fall anyway.
Corrected entry: Considering Alice loses several fingers at the end it seems unlikely she could've ridden a motorcycle or used a weapon.
Correction: How is this a mistake? This is just pure (false) speculation on the part of the submitter. Just because she lost a few fingers doesn't mean she can't ride a motorcycle. I've seen people using them with only one arm! And she is still very capable of using weapons. She still has another hand, plus she didn't even lose all her fingers, so she could still use that hand for certain things.
Okay my bad. I meant to write she loses several fingers but is shown as having them all while riding away at the end. This would be a visible mistake. It was late night, I wasn't thinking properly. Thank you.
Corrected entry: At the first overpass Alice tries to use the motorcycle that's just sitting there, strangely clean. She doesn't have her prints in their system so the bike won't start and she gets zapped. She gets captured by Dr Isaacs and cuts off his left hand to escape on a motorcycle carried on his armored vehicle. Later at another destroyed flyover, she gets back onto the bike and rides towards Raccoon City. No fingerprint or hand required.
Correction: She likely used Isaac's hand to access the bike's computer system and either re-programmed it to work with her finger-prints or simply disabled the security system so it wouldn't require a finger-print scan. She was a former head of security with Umbrella and knew how their systems worked and what they could do, after all. It'd be a lot easier to do that than carry around a hand that will likely start to rot, and nothing in the film indicates that wouldn't be possible.
Correction: I think you misunderstood what was happening. The human settlements were not being killed by the virus. They were being attacked by forces from the Umbrella corporation. The Red Queen explains in the final scene that once Alice killed Dr. Isaacs and released the anti-virus, she was able to take control of Umbrella and stop the attacks, saving the settlements.
TedStixon
That doesn't make really sense. What umbrella employees are left to do that? Also it's just bad writing.
The forces might not necessarily be Umbrella employees. They could be controlled creatures, clones or any of the other forces Umbrella has been shown to possess throughout the six movies. You can basically pick your poison, because Umbrella has been depicted as having near-limitless resources. Regardless, the movie does offer an explanation, and this particular mistake is incorrect because it is contrary to what the movie told us. Plus, like it or not, bad writing isn't necessarily a mistake in and of itself.
TedStixon