Ompare and Contrast Sherlock Holmes Novel and Adaptions

DO NOT NEED IT IN 10 DAYS
I NEED IT BY MARCH 22

This is for a British Literature class.

The paper will be stating the similarities and difference between the original texts from Arthur Conan Doyle and the modern adaptions. If you can, preferably the newest adaptions, (two movies starring Robert Downey, Jr. and the television show, Elementary, on CBS).

A couple of ideas are the surface comparisons such as characters.
Deeper comparisons could talk about the different tones, just as an example.
IT IS ULTIMATELY YOUR CHOICE.

As per the attached instructions, if you would find it easier to do two different papers, that is fine too.