"It sort of exists in a fairly similar world to John Wick. They're going to pick up their weapons from a place and using code words," Gillan told IGN. "I would say the film is pretty different tonally. It's definitely slightly weirder. It's more bonkers. It's really stylized. So I would say that there's like a level of Tarantino feel to it. Maybe like Kill Bill more so than John Wick."

Joining Gillan in battle are Lena Headey as her mother Scarlet, Angela Bassett, Carla Gugino, and Michelle Yeoh as The Librarians and Paul Giamatti as Nathan, a ruthless crime boss.