10 Famous Movie Scenes The Actors Almost Ruined

10. I'll Be Back (The Terminator)

"I'll be back" isn't just one of Arnold Schwarzenegger's most iconic quotes - it's one of the most famous lines in the entirety of cinema, and has been repeated ad-nauseam ever since it was first uttered in 1984's The Terminator.

However, if the actor had got his way, then movie history might not have remembered the scene as fondly as it does today.

Spoken by the T-800 right before it decimates a police station full of helpless cops, Schwarzenegger and director James Cameron initially disagreed on exactly how the line should be spoken, with the filmmaker preferring the more contracted "I'll be back", and the actor favouring the more drawn-out "I will be back".

Schwarzenegger's reasoning was that the line sounded more machine-like without the contraction (plus, with his thick Austrian accent, he had difficulty pronouncing "I'll"), which is actually fair of him to point out, because the Terminator doesn't typically use shortcuts when speaking. But when Cameron told him to just read what was in the script, the actor relented, delivering a major piece of pop-culture history in the process.

Had Arnie won the argument, the scene would've lost that touch of magic, and possibly wouldn't have been quoted over and over again by fans in the decades since.