Kenneth Branagh’s Poirot franchise has officially petered out with A Haunting in Venice, while the Knives Out movies are still going strong. As such, it's worth breaking down what the murder mystery franchises do differently. Branagh’s big-screen adaptations following Hercule Poirot started out strong, with Murder on the Orient Express, which made $352 million worldwide (via Box Office Mojo). The director saw disappointing returns with the bigger-budget follow-up, Death on the Nile. Branagh's A Haunting in Venice also underperformed, raising questions about the future of the franchise.

https://screenrant.com/kenneth-branagh-poirot-movies-box-office-knives-out/