Goofs

At the start of the movie, the unknown masked assassin is escaping after having killed what is to be assumed the target. The entire time the assassin is wearing a backpack. Once he eliminates a few guards he heads to a winding stairwell. As he begins moving down the stairs you can clearly see his backpack. The scene cuts and he is now jumping over the hand rail to evade another guard, no backpack. He does a spin kick on the ground to knock down the guard, still no backpack. Scene cuts again; backpack has magically reappeared.

Scarlett observes the viruses in the sample with a microscope unable to resolve particles of the of the size required. May they should have used a bacterium for the plot line instead.