Film Based On 'The Strange Case of Dr. Jekyll and Mr. Hyde' Book

Soon I will be writing my script for a Dr Jekyll and Mr Hyde film. I don't know what the length of the film will be, it just ends up being what it ends up being. Something out of my control. All I know is that it shouldn't go for 30 minutes.
The reason I'm doing a post about this is because I want to know if anyone's read the book and thinks that something should be the focus of the film.

• Is there an important point of view that should be focussed on?
• Is there a part of the book that shouldn't be ruined? (what I'm trying to say is, is there a part of the book that must be included, not entirely word-for-word or sequence-by-sequence, and not ignored?
• Is there a part of you that wants a certain part of the book be in my film?

If there's something bugging you that I haven't mentioned, then please respond or whatever. This blog is like Aperture Science Innovators. Nobody knows about it until someone is thrown down a tunnel and lands in it.
See Ya!

PS: I won't be uploading this to the internet. For quite a while...