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I've encountered this issue with reviews of manga, where I consider it odd. With films, it is positively bewildering.
Ennis from Brokeback Mountain is a good example of this larger issue. Apparently, when the movie came out, a well-known critic accused Jack of being a "predator" re: Ennis. This caused some fall-out since "predator" is a loaded term within any relationship and particularly within the gay community.
I came across this accusation shortly after seeing the film for the first time. My issue wasn't with the rhetoric. What threw me was the reading of the characters: had I misread them that badly?
So I watched the film again and came away with the same reaction I had the first time plus the additional reaction that film critics don't use their eyes.
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In one of the most remarkable scenes in the movie, Jack tentatively flirts with a cowboy in a bar. What is remarkable is that the audience sees the scene not from the point of view of enlightened city-dwellers (Jack's behavior in a gay bar in any city would appear not only innocuous but unreadable--he is a reserved cowboy). Rather, the audience sees his behavior from the perspective of the culture in which he resides. Jack's behavior appears incongruous--and Jack as an outlier--because of his context, not his personality.
Jack is not the pursuer--he simply appears that way. And Ennis is not the pursued, as his actions (not words) betray.
Ennis is an intense, duty-oriented introvert. That doesn't mean he doesn't feel. As a pained Elinor explains in Sense & Sensibility,
"If you can think me capable of ever feeling—surely you [understand now] that I have suffered. The composure of mind with which I have brought myself to consider the matter . . . did not occur to relieve my spirits at first. Then, if I had not been bound to silence, perhaps nothing could have kept me entirely . . . from openly shewing that I was very unhappy." (my emphasis)Ennis's lack of verbal acknowledgement (his silence) is continually trumped by his "openly shewing" behavior: his willingness to take Jack's place on the mountain; his request for different food--that Jack likes--from Supply; his willingness to talk (dead giveaway):
Jack Twist: Friend, that's more words than you've spoke in the past two weeks.
Ennis Del Mar: Hell, that's the most I've spoke in a year.
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Ennis is no victim or un-involved partner. And although I am aware that extroverts often misread introverts (understandably since so much interaction relies on reading between the lines), I expect more from film critics. If one cannot read visuals, one might look for a different job.