Five years ago, Robert Rodriguez was determined to make a movie about Red Sonja, the She-Devil With a Sword, starring his then-fiancee Rose McGowan.  The film never happened, but you can see some fairly epic concept art. 

Update: We removed the art at the request of the artists. 

The only official images we ever saw from Red Sonja were two posters, which Rodriguez brought to Comic-Con in 2008: