Actors aren't the people they play, folks. Laurence Olivier sure played a mean Henry V, but I seriously doubt he'd have been much use on the fields at Agincourt.
(BTW, here's a pretty bizarre quote from that MeFi thread, in response to a mini-debate within the thread as to whether Bond films should be "realistic" or not. Steven Den Beste weighs in heavily on the "not" side, a position with which I agree, but here's the quote that stopped me in my tracks:
Vaguely more seriously, the James Bond films of the 60s through 80s were during the cold war, and it was believable. After the cold war things in the real world got more complicated and the writers had a hell of a time keeping up. It seemed all the plotlines post Roger Moore were not in keeping with the current events. The explosions and gorgeous bimbos were still there, but the backdrop which made Bond believable thirty or forty years ago just doesn't apply today. You have to place these films in another world entirely, and in that regard, Delmoi is absolutely correct. If you can't believe what you're seeing, you can't escape into it.
Huh? When the hell was Bond ever "believable", and when did the plots ever really deal with "current events"? Look, folks, I know that everybody thinks that the Bond movies were Cold-war espionage thrillers for the longest time, but that simply isn't true.
And then, farther downthread, someone says this:
Hell, up until Timothy Dalton's run, the best, most realistic hand to hand combat scene in a Bond film was when those Gypsy girls fought each other in The Spy Who Loved Me.
Sure, except that's the wrong friggin' movie, by fourteen years. The title you're looking for is From Russia With Love.
And now I'm remembering a Usenet argument I once got into with a person whose knowledge of the Bond movies was staggeringly bad, and yet, there he was, arguing away with the absolutely certainty that he knew what he was talking about, even though I and a couple others had to keep stopping the argument just to correct him on the facts of the series. We're talking about a person who thought that For Your Eyes Only, which came out in 1981 and starred Roger Moore as Bond, was one of the 60s Connery flicks. What is it about the Bond movies that makes people think they know everything about them?)