An enormous amount of intricate planning goes into creating your favorite movie moments. Everything from an intense fight scene to a legendary catchphrase is usually micromanaged to the tiniest detail.

Then there are those moments that seem like they must've been created by some brilliant screenwriter, who spent countless hours in a windowless room meticulously writing a scene to perfection -- when in reality they just kinda happened by accident. Today, we'll be focusing on those types of moments:

16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

ONE OF CINEMA'S MOST ICONIC LINES WAS AN AFTERTHOUGHT IMPROVISATION. The entire mirror scene from Taxi Driver originally wasn't even supposed to have

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16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

TOM HARDY SAW A LOBSTER TANK AND DECIDED HE WANTED TO BATHE IN IT. The restaurant scene from Venom originally just had Hardy rummaging for food. Accor

DEADPOOL'S INNOVATIVE OPENING CREDITS HAPPENED BECAUSE BASICALLY NOBODY WAS ATTACHED TO THE FILM. THE COMIC RELIEF A BRITISH VILLAIN A MOODY TEEN A CG

THE KISS BETWEEN MICHAEL AND OSCAR WAS JUST SUPPOSED TO BE A HUG. According to Oscar Nunez, the original script for the Season 3 premiere of The Offic

16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

16 Cool (Off The Cuff) Movie & TV Moments

AL PACINO YELLING ATTICA WAS A LAST-SECOND SUGGESTION FROM AN ASSISTANT DIRECTOR. Pacino revealed that when it was time to shoot the famous Dog Day

ROBERT DOWNEY JR. GAVE US YOU 3000. LOVE The Avengers: Endgame screenwriters revealed that the original script had Tony and his daughter saying Lov

A MAKE-A-WISH SET VISIT GAVE THOR: RAGNAROK ONE OF ITS FUNNIEST MOMENTS. According to Chris Hemsworth, on the day they were filming the scene in which
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