comparison to the movie bladerunner?

Yikes, where can I start? There are so many differences; I don't have enough room here.

Some details in the book that are very different from the movie.

-Decard is an active police officer in the book and looks forward to hunt down Andies (replicants)to further his job.

-Deckard has a wife

-Real as opposed to electric sheep play a part.

-Mercerism involve colonies that people have joined to lose self-identity

-there is no quest for Andies to find more life

And I'm just warming up! I'm including a link to a really good site for this should you need more.

Sorry, here is the great link that you might be interested in.