20 Things You Somehow Missed In Terminator 2: Judgment Day
11. Arnie's Hidden Cue Cards
While the T-800 drives Sarah and John to Mexico, he drops a lengthy exposition dump about the chain of events which lead to Skynet becoming self-aware and causing a nuclear holocaust.
It's vital information, but honestly pretty wordy, especially for an actor such as Arnold Schwarzenegger who is better known for his terse one-liners rather than verbose dialogues.
And so, James Cameron decided to have the whole spiel taped to the car windshield, allowing Arnie to look forward and give the impression of driving all while reeling off the lore dump. And yet, you'd almost certainly never realise while watching.