Apocalypse Now
We all know that Marlon Brando is a great actor, but did you know that he was difficult to work with sometimes? The actor famously employed method acting, occasionally to the point that he used character quirks in real life. When playing Colonel Kurtz in Apocalypse Now, Brando apparently flat-out refused to learn some of the lines and ended up improvising nearly 18 minutes’ worth of dialogue.
Blade Runner
We have another Harrison Ford film on the list, but this time it’s Rutger Hauer who came up with the improvised line. We’re talking about the final scene in Blade Runner. While Hauer initially stuck to the script, he would eventually stray. That was how the ‘tears in rain’ speech came to be.