Kick:
You are correct...in a roll. Lighter tint for front windows,darker for rear.
Wet window (see instructions inside roll), apply and use a squeegee. Tips: roll window down a tiny bit to apply almost to top edge., use a credit card to push the film under the rubber lip at the bottom. Use a new razor blade for each window.
Take your time, have a friend help you handle large pieces of film. Do the rear window in layers to compensate for the curve.
Good luck,
el Raidman.