Based on the graphic novel based on the killings of Jack the Ripper, From Hell stars Johnny Depp as the investigator leading the case in the Whitechapel murders. How closely does it (blog post) match the actual history of the case (blog post) though? Well.. (blog post) let's put it this way.. if it took place on Mars, it would be just about as true to history.
Source: From Hell Movie Review - Decker Shado