<P> The film stars Jaeden Lieberher and Bill Skarsgård as Bill Denbrough and Pennywise the Dancing Clown , respectively , with Sophia Lillis , Jeremy Ray Taylor , Finn Wolfhard , Wyatt Oleff , Chosen Jacobs , Jack Dylan Grazer , Nicholas Hamilton , and Jackson Robert Scott in supporting roles . Principal photography began in the Riverdale neighborhood of Toronto on June 27 , 2016 , and ended on September 21 , 2016 . Other Ontario locations included Port Hope and Oshawa . </P>
where did they film the it movie 2017
the Riverdale neighborhood of Toronto Other Ontario locations