G.I. Joe: Retaliation director Jon M. Chu and the man behind Snake Eyes (and Darth Maul, for that matter), Ray Park, will be on hand at the 2013 Comic-Con in San Diego for two days next week. The pair will be autographing sleeves for the July 30 release of G.I. Joe: Retaliation on Blu-ray and DVD.
If you want to get an autographed G.I. Joe: Retaliation sleeve from Chu and Park, you will need to hit both of these two time windows at the Hasbro Booth (#3213): Thursday, July 18 from 4-5pm for Jon M. Chu; and Friday, July 19 from 3:30-4:30pm in the Hasbro Booth for Ray Park.
The sleeves Park and Chu will be signing will differ from the mass retail sleeves that will come with the Blu-ray and DVD combo pack on its July 30 release date. These sleeves will feature artwork exclusive to Comic-Con, though unfortunately I do not have any information regarding what the sleeves will look like.