The street signs have a time travel twist. There is a Wells Street (after HG Wells author of 'The Time Machine') and a Hartnell Street (after William Hartnell the first Doctor Who)
Working title was 'Black To The Future'
Baird asks what jeans are. Jeans were patented by Levi Strauss in 1873, and in the 1920s would have been used by laborers, lumberjacks, cattle ranchers and railroad workers in the United States.