Here is some random advice studios should follow (but likely won’t) when considering a female superhero film.
Write a superhero movie about a girl who does not need a love interest. Sure, they can exist (in fact, they should exist – my wife says hero movies without credible love interests are boring and pointless, and I tend to agree), but the love story does not need to dominate the story, and most importantly, the female hero should not be defined by who does or does not want to be with her.
Being sexy does not mean sexualized. Don’t try to show too much skin, but don’t ignore the fact that she’s a woman. If nothing else movie producers, imagine your young daughters or granddaughters dressed up in the costume. If you wouldn’t feel embarrassed by a five-year-old wearing the costume, you succeeded.
Most importantly, the superhero has to be a hero on her own, not the female version of a male hero or his sidekick, femme fatale, partner or love interest. She has to be a complete and whole person all on her own.
Make this happen, Hollywood.