Gunpowder Milkshake is described as being in the assassin genre with a story that spans multiple generations. The entire cast is envisioned as being all-female, with Karen Gillan the cornerstone.
Kill Bill, the opus by Big Bad Wolves fan Quentin Tarantino, and Edgar Wright’s Baby Driver are the touchstones of the project, with “stylish,” “snappy” and “violent” its watchwords.