"No, I am your father" reactions

[Trevor]

There's a lot of these on Youtube: speaking personally, I still get chills remembering when I heard those words for the first time in my home town cinema. There was a ripple of horror which ran through the cinema with more than a few people moaning and a few swear words as well: I think most of them came from me. 

[VenomX73]

NoOooo! That's not true! That's impossible!

[ER]

I felt irritated.

[Alex]

I didn't get to see Empire for some years after Return of the Jedi had come out, and I'd already heard the big reveal by that point alas.

[LilCerberus]

I felt indifferent....
I think in a weird way, it was because I'd watched so much cable, & badies, I could somehow see a cliche' coming....

[zelmo73]

There's a lot of these on Youtube: speaking personally, I still get chills remembering when I heard those words for the first time in my home town cinema. There was a ripple of horror which ran through the cinema with more than a few people moaning and a few swear words as well: I think most of them came from me. 

I remember the "holy sh*t" chuckle from my dad and the *gasp* and "oh noooo" from my mom when my parents took me to see it for the first time in the summer of 1980.