Yesterday, after Weinstein Co. got 10,000 retweets, they posted a small clip of the trailer! Here's the link!
Also, they announced that the FULL 'teaser' trailer will be released today! It premieres on Entertainment Tonight at 7:30pm Easteren time, and 7:30pm Pacific time. It will also be posted online at 7:30pm Eastern time, and 4:30pm Pacific time.