personally, I have zero interest in a Black Widow movie. While Scarlett can be nice to look at, she doesn't have enough charisma and bores the hell out of me.
Depends on the script and the director. In
Iron Man 2, she was nice to look at (devastatingly so) but lacked charisma. In
The Avengers, once she actually had a character she could sink her teeth into and a director skilled at deepening his female players rather than simply glamorizing them, she was a revelation. With a writer and/or director like Whedon, she could certainly carry a movie.
I don't think it's a sexist double standard, it's simply a numbers game and I think the studio is right not to go ahead with a solo Widow flick.
As I said, it's not exclusively about Black Widow. It boggles my mind that Anne Hathaway didn't get a Catwoman spinoff as soon as audiences and critics raved about her breakout performance. She was the most consistently well-received part of
The Dark Knight Rises, praised even by critics who disliked the rest of the film, and there was a lot of buzz about how she deserved a spinoff -- yet there doesn't seem to have been any serious studio interest in one. And we've just heard about a long-term DC development slate that includes Sandman and Aquaman, but no mention of Wonder Woman, the third-most important character in the entire DC pantheon.
I'd much rather see Carol Danvers get a movie.
I'd rather see multiple female characters get movies. Give us a Misty Knight/Colleen Wing detective movie, a riff on '70s blaxploitation and martial arts like the comics were. Give us
Birds of Prey, and do it better than the TV series did. Heck, if you don't think Black Widow can carry a film by herself, how about a "Fury's Angels" film with Widow, Maria Hill, and either Sharon Carter or Mockingbird? (Or both?)
And for Hera's sake, get Wonder Woman on the goldurn screen already. There's just no excuse there.
Even a Ms Marvel movie could be a tough sell, as well as every other Marvel female hero, simply because they lack name recognition.
Iron Man and Thor had very little name recognition among the general public (beyond, well, most people having heard of Norse mythology) prior to their hit movies. Marvel wasn't afraid to gamble on them.
Besides... Marvel plasters its name all over its movies and their promotional materials. How much more name recognition does Captain
Marvel need?
It's a big risk, and it's easy to say "sexism" when it's not your $ on the line.
And it's just as easy to use $ as a rationalization for sexism or other discrimination. Half a century ago, TV networks were reluctant to include black people in their shows because they thought it would alienate a lot of the white viewers who bought their advertisers' products. Then they did demographic surveys revealing how much buying power African-Americans had, and they realized they'd been fools for passing up that market, so they started encouraging their shows to include more diverse casts, which is how we got Uhura and Sulu in
Star Trek, Barney in
Mission: Impossible, and so on.
The problem with the argument that female-led movies aren't profitable is that it's based on an underlying double standard. If a movie with a male lead bombs, nobody ever blames that failure on the sex of the movie's lead; they recognize that it had a bad script or bad acting or bad directing or bad promotion or whatever. But when films like
Elektra and
Catwoman bombed, the studios immediately jumped to the conclusion that they failed because they had female leads -- which is insane when you consider how many enormous flaws both movies had that are far more obvious explanations for their failure. (I actually kind of like
Elektra, but I recognize it's got a lot of weaknesses and its appeal is cultish at best.) It's a spurious correlation. They're not deriving a conclusion from the evidence, they're selectively interpreting the evidence as validation for their pre-existing assumptions. The exclusion of women came first. The financial argument is just the excuse for perpetuating it.