![In order to prevent the twist of Vader being Luke's father being spoiled in The Empire Strikes Back (1980), the line written in the script and spoken during filming was "Obi-Wan killed In order to prevent the twist of Vader being Luke's father being spoiled in The Empire Strikes Back (1980), the line written in the script and spoken during filming was "Obi-Wan killed](https://i.redd.it/5pyt5ndgb4l51.png)
In order to prevent the twist of Vader being Luke's father being spoiled in The Empire Strikes Back (1980), the line written in the script and spoken during filming was "Obi-Wan killed
![YARN | I am your father. | Star Wars: Episode V - The Empire Strikes Back (1980) | Video clips by quotes | aa04db45 | 紗 YARN | I am your father. | Star Wars: Episode V - The Empire Strikes Back (1980) | Video clips by quotes | aa04db45 | 紗](https://y.yarn.co/aa04db45-566c-4d41-b8d7-dfcabc5a75c2_screenshot.jpg)
YARN | I am your father. | Star Wars: Episode V - The Empire Strikes Back (1980) | Video clips by quotes | aa04db45 | 紗
![Mark Hamill Shares How He Learned Darth Vader Was Luke's Father in THE EMPIRE STRIKES BACK — GeekTyrant Mark Hamill Shares How He Learned Darth Vader Was Luke's Father in THE EMPIRE STRIKES BACK — GeekTyrant](https://images.squarespace-cdn.com/content/v1/51b3dc8ee4b051b96ceb10de/f6282ddf-b553-47b3-b01b-a9eb190be404/Mark+Hamill+Shares+How+He+Learned+Darth+Vader+Was+Luke%27s+Father+THE+EMPIRE+STRIKES+BACK.jpg)
Mark Hamill Shares How He Learned Darth Vader Was Luke's Father in THE EMPIRE STRIKES BACK — GeekTyrant
![Claimed footage of cinemagoers' reaction to Darth Vader's "I am your father" line has another surprise | Boing Boing Claimed footage of cinemagoers' reaction to Darth Vader's "I am your father" line has another surprise | Boing Boing](https://i0.wp.com/boingboing.net/wp-content/uploads/2022/05/Screen-Shot-2022-05-14-at-12.04.32-PM.jpg?fit=1164%2C738&ssl=1)
Claimed footage of cinemagoers' reaction to Darth Vader's "I am your father" line has another surprise | Boing Boing
![YARN | I am your father. | Star Wars: Episode V - The Empire Strikes Back (1980) | Video clips by quotes | aa04db45 | 紗 YARN | I am your father. | Star Wars: Episode V - The Empire Strikes Back (1980) | Video clips by quotes | aa04db45 | 紗](https://y.yarn.co/aa04db45-566c-4d41-b8d7-dfcabc5a75c2_text.gif)