When screenwriter R.C. Sherriff was hired to write The Invisible Man (1933), he asked the staff at Universal for a copy of the H.G. Wells novel. No one had a copy, in fact all they had was 14 "treatments" submitted by previous writers, including one set in Czarist Russia and one set on Mars. Sherriff purchased a copy of the novel at a used bookstore. After reading the novel he was convinced that it would make an excellent picture as it stood, and wrote a script that (unlike the Universal versions of Dracula (1931) and Frankenstein (1931)) was a much closer adaptation of the original novel.