Complex sentence: Matthew Smiley, an artist and filmmaker, conceived of the documentary after touring Prince George, which he felt had an ideal landscape to make a film, where his brother-in-law mentioned the case of Nicole Hoar, who went missing on Highway 16.
Split into simpler sentences: Matthew Smiley, an artist and filmmaker, conceived of the documentary after touring Prince George, which he felt had an ideal landscape to make a film. While he was there, his brother-in-law mentioned the case of Nicole Hoar, who went missing on Highway 16.