Movies 101: "Sidney," "Catherine Called Birdy" and "Watcher"

We try to find themes in the movies we review on Movies 101, but sometimes it’s just impossible. This week Dan Webster, Mary Pat Treuthart and Nathan Weinbender discuss a trio of streaming movies that couldn’t be more different in theme, tone and even style. All, though, are quality views. First up is the Sidney Poitier documentary “Sidney,” followed by Lena Dunham’s anachronistic comic study “Catherine Called Birdy,” and, finally, the woman-in-peril thriller titled, simply, “Watcher.”