What are wild lines, and why are they not present in theatrical productions?

wild lines are lines that actors repeat when they weren't clear enough to be heard the first time. Theatrical productions are live, and you cannot go back and change what has already been done.

A wild line is dialogue that is recorded on location, but not at the same time as it’s complimentary footage. Some times when filming on location, certain dialogue or lines are not recorded properly for one reason or another (unexpected loud ambient noise).

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )

by acting roughly or something dramatic happening in the story.