All that changed with the release of a little movie called "John Wick," one that brought some much-needed spark to its genre. Named after Reeves' taciturn lead, the original 2014 "John Wick" was on paper a relatively straightforward revenge story,

With 'Ballerina' in theaters and a Donnie Yen feature on the way, there are still plenty of ways to expand the 'Wick' universe.

When you buy through links on our articles, Future and its syndication partners may earn a commission. There's an unwritten rule in movies that no character is dead until you full-on see a corpse... and that makes readings of John Wick: Chapter 4 's ending complicated.