Continuity mistake: In the flashback where the dog (Claire) is spraying lighter fluid on the barbeque, notice the direction of the nozzle before and after the explosion. Before it is pointing towards the barbeque and afterwards it is right angles to it, facing towards the camera, meaning that if it were squeezed it would not hit the barbeque at all. And I very much doubt the explosion could cause the bottle to rotate in this manner.David Mercier
Revealing mistake: When Emilio is breaking into the cookie factory, he finds a key under a welcome mat. He then opens the door before fully unlocking it with the key.