Even if you have never seen "Chinatown" you are probably familiar with the celebrated final line "Forget it Jake, it's Chinatown." But did you know that the line almost didn't make it to the screen?

Jack Nicholson, 1970 CHINATOWN, Jack Nicholson, 1975 CHINATOWN, from left: Jack Nicholson, director Roman Polanski on set, 1974, chinatown1974-fsct14, Photo by: (chinatown1974-fsct14) HOFFA ...

Chinatown, The Shining, Reds, Batman, A Few Good Men, About Schmidt, Something's Gotta Give, and The Departed. Description above from the Wikipedia article Jack Nicholson, licensed under CC-BY-SA ...