Captain Marvel's Air Force service and "Chuck Yeager swagger" has always been the key to her character, directors Anna Boden and Ryan Fleck said in an interview.
The time visiting with Air Force pilots also apparently helped Larson understand where her character — whose real name is Carol Danvers — is coming from.
Oscar-winning actress Brie Larson paid a visit to Nellis Air Force Base in Nevada this week to research her next role: Air Force officer-turned-Avenger Captain Marvel.