Read these books:

1984
Brave New World
Fahrenheit 451

Watch these movies:

Demolition Man
Equilibrium
Gattaca
Logan's Run
THX 1138
Metropolis (Fritz Lang)
V for Vendetta
the Star Wars saga
The Matrix trilogy
Minority Report

That's all I've got off the top of my head. Some for obvious reasons, others may be more subtle.

Brian