In a bizarre case of a previously untold comic-book-movie-near-miss-casting, iconic 90s rapper Coolio has asserted that he took a bit part in Joel Schumacher's Batman & Robin because the director promised to cast him as Scarecrow in the film's unproduced sequel.
"[Batman & Robin] was the only Batman that didn't make money," Coolio told the Burleson Star. "I'm still sore about that a little bit, cause the only reason I did that part is because they promised me the villain part in the following Batman, which they didn't do, because Joel Schumacher - they fired him."
In Batman & Robin, Coolio played a minor role as "the Banker." It's unclear whether he would have continued the same role, with that character becoming a villain, or have been double cast between the two films.
"He was supposed to do the two next ones," Coolio continued. "He and I didn't get along that good anyway - I mean he made a terrible Batman movie. But the next villain was supposed to be the Scarecrow. They didn't do it though. Maybe one day. I'm sure they won't come calling, though."
The next planned film in Warner Bros. Batman franchise was to be titled "Batman Triumphant" or "Batman Unchained," depending on which version of the script is being referenced, and did indeed feature the Scarecrow as the main villain. Many rumors about the unproduced film exist, including that Jack Nicholson would return as the Joker in fear-gas induced flashback scenes. In the years since the film was cancelled, several actors have been rumored to have been attached to the role of the Scarecrow, with Schumacher himself once claiming he planned to cast Nicolas Cage in the role. Other actors rumored to have been attached to the role in some capacity include Steve Buscemi, Jeff Goldblum, Ewan McGregor, Crispin Glover and even Howard Stern, when Howard Stern making movies was a thing.
Scarecrow would eventually be one of the main villains in Batman Begins, the first film in the "Dark Knight" trilogy, which replaced the previous film series as Warner Bros.' Batman franchise. Cillian Murphy took that role, recurring throughout the film series.