After the first Matrix movie, I really coveted a Nokia with the spring-loaded sliding cover. Turns out such a phone wasn't available--the spring-loaded thumb-activated sliding cover was available on one Nokia series phone, but the actual phone body used in the movie was some other model, rigged with the nifty trick cover. The phone from the The Matrix: Reloaded, however, is available exactly as seen in the movie. Alas, it's only compatible with Sprint.
Had I been a Sprint subscriber when these first hit the market, I would, without a doubt, own one today. Pop-up earpiece? Bloody cool. Flash your inner geek proudly.