Kingsman stretches potentially across a century of adventures and stories, due to the in-universe origins of the group. Based on the Millarworld comic series The Secret Service by Mark Millar and Dave Gibbons, the cinematic version of the group was introduced in Matthew Vaughn's 2014 film Kingsman: The Secret Service. Although that film was fairly self-contained, it opened up a world of colorful violence, deadly espionage, and the forces pulling at the society of the 20th and 21st centuries that have been explored across multiple films.