Patrick Stewart, meanwhile, unveiled the trailer for his upcoming Star Trek: Picard series which will air on CBS All Access. Netflix had a big Hall H panel of its own, but fittingly, it was for the streamer’s live-action adaptation of DC’s The Sandman, with series creator Neil Gaiman as the co-showrunner. August 17. The new trailer firmly establishes that the title character, Jennifer Walters (Tatiana Maslany), does not want to be a superhero despite the efforts of her famous cousin, Bruce Banner (Mark Ruffalo).