Continuity mistake: When the Destroyer arrives amidst the Shield agents, a coffee cup sitting on the dash of one of the vehicles spills over. The next shot it can be seen lying on its side. The reverse angle shot then shows it upright again. (01:21:20)
Trivia: Stan Lee makes his customary appearance as the driver of the white pickup truck that tries to free Mjolnir from the ground. (00:36:10)
Continuity mistake: At the end of the scene where everyone is trying to pull Mjolnir out of the crater, a SHIELD agent is seen pulling up in an SUV at the top of a hill about 50 yards away. When the shot changes to the view from where the SHIELD agent gets out of his SUV and is standing at the top of the hill he is a 1/2 mile away or more.
Chosen answer: Thor sounds nothing like "thaw" (at least, not with Jane's accent). Also, "Thor" is not an uncommon name in Scandanavian countries, and even if she didn't assume he was from there, she probably just thought it was an odd name and left it at that.
Xofer