Star Wars Cast Didn't Know About 'I Am Your Father' Scene Until Movie Was Out

Mark Hamill said it was "agony" to keep that plot twist a secret from his costars for over a year

My Favorite Scene: I Am Your Father

Darth Vader Actor David Prowse Spoiled the Big STAR WARS Plot Twist Two Years Before EMPIRE STRIKES BACK Was Released — GeekTyrant

The Original Empire Strikes Back Script Shows Darth Vader Wasn't Supposed to Be Luke's Father

Star Wars: Episode II - Attack of the Clones (2002) - IMDb

Mark Hamill Talks The Machine and Why Star Wars Is Not in His Future – The Hollywood Reporter

Go Way Behind The Scenes Of 'Star Wars: Visions' Volume 2 With Some Never- Before-Seen Artwork

The Force Returns: George Lucas Before the “Star Wars” Prequels

Possible origin of 'Luke, I am your father' misquote? : r/StarWars

Ke Huy Quan: From Short Round to Romantic Lead After Four Long Decades - The New York Times