Complex sentence: Jewison's commitment and contribution to film in Canada is evidenced by his creation of the Canadian Centre for Advanced Film Studies in 1986, which opened its doors in 1988 as an advanced film school on Windfields Estate in Toronto, Ontario.
Split into simpler sentences: Jewison's commitment and contribution to film in Canada is evidenced by his creation of the Canadian Film Centre. Jewison founded the Canadian Centre for Advanced Film Studies in 1986, which opened its doors in 1988 as an advanced film school on Windfields Estate in Toronto, Ontario.