Complex sentence: Arcadia and CBC produced a film entitled "Chasing Wild Horses" on the subject in 2007, which premiered on Bravo TV in Canada in 2008 and was later shown on PBS.
Split into simpler sentences: Arcadia and CBC produced a film entitled "Chasing Wild Horses" on the subject in 2007. The film was premiered on Bravo TV in Canada in 2008 and was later shown on PBS.