Deliberate mistake: There was no possible way for Edith to still be alive after the spiked coffin closed in on her. There are spikes on the doors and at the very back and sides of it, and she couldn't have squeezed in to brace herself. Probably done for obvious reasons, but still a mistake nonetheless.
Other mistake: While Gru is shrinking the moon the camera revolves quickly around the moon as it shrinks. When it cuts to the minions watching from earth, they have the same perspective as us.
Other mistake: The laptop used by Mr Perkins, boss at the Bank of Evil, has two W keys; the second key is between Z and X on the bottom row. (00:56:04)
Continuity mistake: When Gru takes the girls to his house just after adopting them, there is a newspaper on his lawn, lying completely on the grass. In the next shot, part of it is on the dirt pathway.
Answer: No, it's his surfboard.
Sierra1 ★