Throw It In/Playing With

Basic Trope: An actor improvises/screws up a line or scene, which eventually goes into the final product.

• Straight: In a scene of Legend of the Ancient Trope, Daniel is supposed to tell Lord Evulz he is a dangerous fighter, then draw his sword. However, Daniel's actor draws the sword too quickly, and ends up flinging it offscreen. The director decides to keep it in, pretending it's a comedy scene.
• Exaggerated: The entire movie is improvised by the actors.
• Justified: The flub puts more emphasis on the fact that Daniel is a horrible fighter.
  • Rule of Funny / Rule of Cool
• Subverted: The director says he'll keep it in, but a while later decides against it and orders a proper take of the scene.
• Double Subverted: But he goes and puts the flub in anyway.
• Zig Zagged: ...and then removes it when test audiences react negatively.
• Inverted: In a movie that is entirely improvised, Daniel's actor speaks a pre-written line that gets into the final cut.
  • The director suddenly tells the actors not to use a particular line from the script.
• Deconstructed: ???
• Reconstructed: ???
• Invoked: ???
• Enforced: Daniel's actor is told to improvise whatever feels right.
• Lampshaded: "Wow, didn't expect that..."
• Defied: The director orders the scene to be shot properly.

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"Hey, that wasn't in the script! ...Ah well, Throw It In."