It all ties together rather nicely, doesn't it? Theater, role-playing, performance.
Plus, Vandamm's "your very next role" punch-line comes off a longer speech about the various roles that "Kaplan"(Thornhill) has played, including "the peevish lover, stung by jealousy and betrayal." Why, Vandamm could have been a screenwriter! Not to mention, Vandamm suggests that Kaplan "should get a little less training from the CIA , and more from the Actor's Studio." Actor's Studio alumni Eva Marie Saint and Martin Landau are standing right there!
What I also like about this exchange:
Grant: I suppose the only role that will satisfy you is when I play dead. Mason: Your very next role. You'll be quite convincing, I assure you.
IS
a super-elegant version of what a "modern-day" villain would say:
Mason: You're DEAD, blanker-blanker, you hear me? DEAD!!
Same effect, same meaning, just much more charming.
What I Love about Gert Frobe's delivery of that line is how he can just barely stifle his laughter.
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Possibly the most famous hero/villain exchange in Bond...and it plays at a Hitchcockian level of sophistication. Alas, too often the Connery Bonds had things like Bond firing a scuba spear gun spear into an adversary and saying "He certainly got the point."
Weird: I rather find the "theme" of that Goldfinger/Bond exchange to be echoed years later when psycho mobster Michael Madsen tells a hostage policeman in "Reservoir Dogs": "I'm not going to torture you to get information from you. I don't need information from you. I'm just going to torture you because I want to torture you."
(All paraphrased.)
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Some friend often quoted a line from a James Bond character(villain or Q or M, I don't know) as follows: "Your powers of observation do you credit, Mr. Bond."
I use this on people as a joke when they notice something I don't.
I don't know if the line is really from a Bond movie or not.