User blog comment:NOS Sterling/Sonic Movie has been Comfirmed/@comment-24026943-20140702194852/@comment-32856285-20140907211156

While depending on the director, he can affect the screenplay/script if necessary if he's well known. If he's just a noob at the whole director's chair then no, he does not, it is then the producer who has the say on the script but besides that, the writer is still the one who comes up with the idea.