Trailer 1.1 is now online for your enjoyment. The unofficial numbering is due to the trailer being nearly identical to the first trailer except for three very brief scenes. The trailer has been showing off and on in theaters but be surprised if most people noticed the difference. Below is trailer 1.1, the video after that is trailer 1 so you can compare. Here are the differences:

0:23 - Bilbo’s reaction to Gandalf arrival to Bag End
1:57 - Bilbo hiding behind a tree in Mirkwood Forest
1:59 - Gandalf, the dwarves, and Bilbo running through forest, enemy not shown

Trailer 1.1
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The Hobbit: An Unexpected Journey Trailer 1.1. There are any The Hobbit: An Unexpected Journey Trailer 1.1 in here.