:"Famous" is fine for the reasons listed ad nauseam above (including your own: "I don't mind using the word famous as long as a proper context is included for it"). I think those four quotes from reliable sources have the context pretty much cornered. You might be right about the picture not matching the line. If you weren't so hellbent on turning the article into an indictment of Snakes on a Plane you might notice that I haven't made a single partisan edit, and actually care more about the integrity of Wikipedia than the box office or "fame" of that line. Also, normally, I would welcome an editor like you as a necessary corrective given that this Internet phenomenon of a movie is bound to tease out that pesky Wikipedia systemic bias. The only problem in this case is that your reasonable campaign against the movie has unreasonably got the article protected.  

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