Robert Downey, Jr. has said that storylines for two Sherlock Holmes sequels have already been figured out.
According to Digital Spy, the actor told Empire that he would be happy to continue making Iron Man and Sherlock Holmes movies should both film franchises prove successful.
"Between Guy and me, the missus (producer Susan Downey) and Joel Silver (producer), we definitely know what we would like to do for the next two sequels," Downey Jr said. "But I want to add a massive disclaimer: I'm just generally a confident person. I've no idea where anything is going to go.
"To tell you the truth, I would be happy to bounce back and forth between Sherlock Holmes and Tony Stark until I am forcibly retired. And also, fortunately, not unlike Iron Man, there is a way to continue along the lines of it and not become increasingly embarrassed by my greying hair and ropey muscles."
Holmes director Guy Ritchie added that Sir Arthur Conan Doyle's creation provides "a reservoir of narrative that doesn't dry up over a hot summer".