The second trailer for Prometheus debuts March 17th in a special invite-only premiere at the AMC Downtown Disney. Director Ridley Scott will be there for Q&A conducted by the film’s writer/producer and Lost show runner Damon Lindelof. The trailer will go online immediately following the event at http://youtube.com/amctheatres.
Here’s the AMC link where you can submit questions to Scott.
In case you missed it here’s the TED video which shows the link between Alien and Prometheus.