c. A Study in Scarlet
Robert Downey, Jr. is the latest actor to play Sherlock Holmes in the movies. He was born on Apr. 4, 1965.
Downey has lots of material to draw upon for future sequels since there were 60 original Holmes stories. They were written by Sir Arthur Conan Doyle. The series made him rich and famous, but he eventually got sick of coming up with new mysteries for Holmes to solve and killed him off in the story "The Final Problem." His fans were outraged and they eventually convinced Doyle to bring Holmes back to life in the story "The Empty House."