Other mistake: When Vlad is in the armory of the monastery, he is standing directly under sunlight. This should have caused his skin to burn immediately and give away that he's a vampire. (00:52:05)
Other mistake: The main events of the film presumably take place in May, since we see Peter and Gwen graduate in the beginning. After Gwen's death, Peter is shown mourning through autumn and winter-like weather. However, near the end of the film, a news reporter says it's been only five months since Spider-Man disappeared. This would put the last fight with Rhino in October, and mean it snowed in the middle of summer.
Other mistake: Zarina creates orange pixie dust that is supposed to give you light bending powers. But when Zarina throws the dust on the fairies and they change powers, Rosetta ends up with orange which gives her animal powers, not light bending powers.
Other mistake: Logan, Charles, Erik and Hank are boarding the plane after breaking Erik out of the Pentagon. Erik goes to reach down for the paper and Logan stops him by placing his bone claws down on the paper. On the third column of the article on the front page, the article mentions a shoemaker named Max Schwartz and a couple of paragraphs below, a woman named Mrs. Locklan Smith. On the fourth column of the article, the exact same paragraphs of both the shoemaker Max Schwartz and Mrs. Locklan Smith have been repeated a second time. (00:52:20)