15 Very Improvised Movie Moments

We all know that movies are built upon a foundation of coordination and elaborate preparation. From set design and build, to writing and editing, to cinematography, to directing and editing--there are literally armies of people working to plan and erect these cathedrals of the modern media landscape.
The funny thing is, despite all of this extensive planning some of the greatest moments in movies are completely improvised and unpredictable.
Apparently, if you let Bill Murray show up every day and say more or less whatever he wants on camera, he’ll be happy to do exactly that.
We had no idea that Will Smith came up with one of his most famous monologues in the Fresh Prince on the spot. The last scene of Wayne's World? You guessed it, also unscripted.
Want to be surprised? Well, don't just stick to the script. Take a chance and scroll down for more! Here’s the full story, plus 14 others:

Source: The Dissolve, New York Times
The Fresh Prince

Source: CheatSheet

Source: Entertainment Weekly

Source: Yahoo

Source: FilmSchoolRejects

Source: Wired

Source: The Independent

Source: IndieWire

Source: Mental Floss

Source: CBR
Bill Paxton

Source: Uproxx
They Live

Source: NPR

Source: People.com
Ben Stein

Source: Yahoo
Captain Phillips

Source: The Week