Captain America: The First Avenger a video game tie-in titled "", that was released in 2011 for the Xbox 360, PlayStation 3, Wii and Nintendo DS. Marvel released the mobile game, "Captain America: Sentinel of Liberty", in July 2011. A toy line was released as well. The world premiere of "Captain America: The First Avenger" was held on July 19, 2011, at the El Capitan Theatre in Hollywood, California. The film was screened at the San Diego Comic-Con International on July 21, 2011. It was commercially released in the United States and Canada on July 22, 2011. Paramount opted against altering the American-centric title when
Captain America: The First Avenger team of that name, and in November Johnston refuted speculation that the Sub-Mariner, an Invaders team-member in the comics, would be included. Johnston later explained that "the Invaders" had been discussed simply as a possible name for the squad of commandos Captain America leads in the film. Christopher Markus, one of the screenwriters, said the unnamed group was "called the Howling Commandos in the script, but no one says that out loud." The design as a whole tried to create technology that could be built in the 1940s, though with the added Cube technology in Hydra's case. Abandoned Nazi projects