Here's what 3 things I would have done different:
- IMAX preview with the Hobbit - might not have been possible to do with the opening but why not a preview like they did for Batman Begins, it could have been around 4 or 5 minutes long. Maybe it could have even been done as a making of type thing with interviews interspersed with footage. Alternatively it would be good to do this with Iron Man 3 or Star Trek Into Darkness or maybe even a similar thing with the finale of Arrow as Batman Begins did with Smallville.
- TV Spot with the Superbowl - they missed a trick with this one.
- a panel at Wondercon with the reveal of the new character posters
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Just had a thought on the mask too there were some spoilers that said it looks similar to the masks worn by the Engineers in Prometheus and I can definitely see the resemblance.