Chloë Grace Moretz was over 12 years when Kick-Ass was filmed .
In January 2010 , an uncensored preview clip of the film was attacked by family advocacy groups for its display of violence and use of the line `` Okay , you cunts , let 's see what you can do now , '' delivered by Chloë Grace Moretz , who was 13 years old at the time of filming .
Kick-Ass -LRB-film-RRB-