Woman: [Talking about cigarettes.] Funny, now that I know these things won't kill me, I don't enjoy them.
When McDonald is in the tunnels and is called to pick up the phone, he picks up a red phone. It is a standard Bell TouchTone desk phone. To make the phone look more futuristic, there was no cord and it was disguised as a cordless phone. The port that the cord would plug into is covered by a piece of colored tape. This also can be seen in the operations center of Ape Control when the worker picks up the phone.
In the area Caesar yells "Lousy human bastards!", the black uniforms of the Ape patrol look a lot like the Nazi SS uniforms.