Thanks to imgur user Mobius01, we now present you with these top 10 seriously remarkable movie flukes. (For even more unscripted but historic moments, head here!)
The Shining (1980)
"In the movie's most quoted moment, Jack Torrance [Jack Nicholson] chops a hole in a bathroom door, announcing to his terrified spouse — 'Here's Johnny!'
The famous line was Nicholson's own creation. Nicholson was actually mimicking the catchphrase used by Ed McMahon to introduce Johnny Carson on The Johnny Carson Show."
Silence of the Lambs (1992)
"'A census taker once tried to test me. I ate his liver with some fava beans and a nice Chianti.' [Hopkins] then hisses and sucks at Starling in a truly revolting and disturbing manner, forever putting an entire generation off that particular variety of wine.
Hollywood rumour says that this hissing was just a joke thrown in by Hopkins. He never intended it to be so frightening, not to mention appearing in the final cut and becoming so utterly conspicuous."
"While chumming the waters in an attempt to lure the deadly great white shark within range, Police Chief Brody (Roy Scheider) gets his first look at exactly how massive the killer shark truly is. Stunned, startled and filled with fear he stands up and utters the now famous line to Orca Captain Quint (Robert Shaw) completely off-script, 'We're going to need a bigger boat.'"
Taxi Driver (1976)
"It's one of the most famous lines in cinema. It also never appeared in the script for the 1976 Robert De Niro movie Taxi Driver. According to screenwriter Paul Schrader, the script simply said 'Travis speaks to himself in the mirror,' and De Niro improvised the classic dialogue."
The Dark Knight (2008)
"As the Joker (Heath Ledger) waits quietly alone in jail after having been arrested by Jim Gordon (Gary Oldman), Mayor Garcia (Nestor Carbonell) shows up to look over Gotham's latest scourge. While there he also promotes Gordon to the position of Commissioner.
As the officers in the room applaud the announcement Ledger begins, unscripted, to slowly clap - never changing his facial expression. It was just a simple improvisation but one that was unsettling and darkly brilliant."
"Another of Ledger's unscripted performances occurred during the hospital explosion scene. The pause in the explosions was scripted, but Heath Ledger's actions while it was stopped were unscripted."
The Godfather (1972)
"The cat was never part of the original script. Some reports say that Coppola plopped the feline into Brando's lap just before filming began. Other reports say Brando found "il gatto" roaming around the set, picked him and gave him an offer he couldn't refuse."
Saving Private Ryan (1998)
"One of my favorite scenes in Saving Private Ryan, involves Matt Damon’s character telling Tom Hank’s character a story about his three brothers and a girl from back home. All of this was ad libbed by Matt Damon."
Ben Stiller In this scene involving former hand model J.P. Prewitt (David Duchovny) and the dimwitted male model Derek Zoolander (Ben Stiller), Prewitt - a conspiracy theorist - explains how the fashion industry has been behind every high profile political assassination of the last hundred years. Zoolander asks, "Why male models?" Prewitt answers with a lengthy explanation, after which Zoolander responds again, "Why male models?" Stiller forgot his original line and just repeated his previous line instead. This prompted Duchovny to ad-lib his response "Are you kidding? I just told you like a minute ago." The scene ends up reinforcing the movie's narrative of the brainless male model stereotype and Stiller turned a gaffe into one of the funniest parts of the film.
Pretty Woman (1990)
"In what became one of the most famous scenes from the film, Edward Lewis (Richard Gere) presents call girl Vivian Ward (Julia Roberts) with a gorgeous and rather expensive diamond necklace. As Roberts reaches out to touch the precious jewels, Gere - in an unscripted playful moment - quickly snaps the box shut genuinely surprising her. Her laugh was so honest, and the scene so good, that Marshall decided to leave it in the film as is."
A Clockwork Orange (1971)
"Alex (Malcolm McDowell) breaks into a happy song as he and his "droogs" perform a bit of "ultra-violence" and rape. Reportedly Kubrick filmed this scene several times and wasn't happy with it each time - until he told McDowell to just "do anything he wanted". McDowell decided to belt out "Singing in the Rain" and Kubrick was so pleased with how much better the scene became that he acquired the rights to use the song immediately."