As one of the largest franchises in history, it’s unsurprising that James Bond has seen three screen adaptations of Ian Fleming’s Casino Royale. James Bond has seen eight actors portray 007 in the movies, with the reimaginings of the mysterious spy also coming with multiple remakes of Ian Fleming’s original novel. While Daniel Craig’s 2006 franchise film gets all the glory, Ian Fleming’s first James Bond story, Casino Royale, has also been adapted a few times outside of Eon Production’s series. Considering Casino Royale is the very first James Bond work by Fleming, it makes sense that the agent’s official debut has been adapted more times than any of his other stories into movies.
https://screenrant.com/james-bond-casino-royale-different-versions-explained/