While "Kick-Ass" creator Mark Millar confirms there will be a third "Kick-Ass" movie to complete the trilogy, director Matthew Vaughan and his Marv Films is also looking to produce a stand-alone "Hit-Girl" film:
The first "Kick-Ass" feature released in 2010 on a budget of $30 million, earned $100 million world-wide, then sold over 1 million DVDs, scoring an additional $24 million. "Kick-Ass 2" on a budget of $28 million, released in 2013, earned $63 million world-wide plus an additional $15 million in DVD sales.
Although the numbers are not blockbuster, there is a dedicated fan-base including director Quentin Tarantino, that supports Chloë Grace Moretz' portrayal as young female vigilante aka 'Hit-Girl'.
The first female kid 'superhero'who wasn't someone's sidekick, was the character 'Tomboy' debuting in "Captain Flash" comics (1954)...
...with an age range and fighting abilities similar to 'Hit-Girl':
"...'Janie Jackson' was a young schoolgirl, who unbeknownst to her police detective father...
"...was secretly the crime-fighting 'Tomboy'.
"She had no powers, but was a skilled fighter...."
"I'd always planned it as three books and three movies," said Millar about "Kick-Ass 3".
Click the images to enlarge and Sneak Peek Chloë Grace Moretz as 'Hit-Girl'...