A comment supposedly made by Darth Vader to Luke Skywalker in the Star Wars trilogy has topped a list of phrases most often misquoted by film fans.
They are widely believed to have been uttered by Darth Vader when he confronts Luke Skywalker in the Empire Strikes Back - but in fact they do not feature in the film.
Second place in the poll was taken by Snow White and the Seven Dwarfs, with the evil Queen's quote 'Mirror, mirror, on the wall - who is the fairest of them all?'.
The actual line begins 'Magic Mirror, on the wall'.
In third place in the poll of 1,500 film fans, by LOVEFiLM.com, was Dirty Harry - played by Clint Eastwood - saying "Do you feel lucky, punk?"
In fact, he says "Do I feel lucky? Well, do ya punk?"
And while "Play it again Sam" may be forever linked with Casablanca, Humphrey Bogart's actual line is "You played it for her, you can play it for me. If she can stand it, I can. Play it!"
Fifth was Hannibal Lector in Silence of the Lambs, who did not say "Hello Clarice" but instead said "Good evening, Clarice".
Star Trek's Captain Kirk did not say "Beam me up, Scotty", with the closest he ever came to this phrase was a less pithy "Scotty, beam us up".
Darren Bignell, Communications Manager for LOVEFiLM, said: "Iconic film lines are part of everyone's vocabulary these days, but it's interesting how years of quoting have had a Chinese whisper effect on accuracy."
The Top Ten Movie Misquotes (below in misquoted form) were as follows:
1. "Luke, I am your father" - Star Wars V: The Empire Strikes Back (1980)
2. "Mirror, mirror on the wall, who is the fairest of them all?" - Snow White and the Seven Dwarfs (1937)
3. "Do you feel lucky, punk?" - Dirty Harry (1971)
4. "Play it again, Sam" - Casablanca (1942)
5. "Hello, Clarice" - Silence of the Lambs (1991)
6. "Beam me up, Scotty!" - Star Trek: The Motion Picture (1979)
7. "Frankly, Scarlett, I don't give a damn" - Gone with the Wind (1939)
8. "If you build it, they will come" - Field of Dreams (1989)
9. "I don't think we're in Kansas anymore, Toto" - The Wizard of Oz (1939)
10. "Mrs. Robinson, are you trying to seduce me?" - The Graduate (1967)