Simplify the following text for a Grade 6 native English-speaking person.
Original: Whedon stated that with the Wonder Woman project left behind , he would focus on making his film Goners , but said , `` I would go back in a heartbeat if I believed that anybody believed in what I was doing .
Simplified: Whedon said that since he was not doing the Wonder Woman project , he would focus on making his film Goners .