Looks like Loki is the perennial prisoner. As you'll see in this first clip from the second Thor movie, The Dark World, he's not taking his time in the clink quite so well this time around. I almost wish he was, so we might have heard an equivalent of his "mewling quim" insult slinging tailored to his big beefcake brother
I don't think Kenneth Branagh's contribution in bringing Tom Hiddleston into the Marvel Movieverse can be easily overstated.
The Dark World opens in the UK on October 30th and in the US on November 8th. IMAX screens will have early sessions from October 30th in many countries.