This is from a few years ago (2007) but was new to me, although we've heard these stories before. I think Chaplin has had quite a resurgence since then as well. Although I don't think he was ever really forgotten.
"HE HATED watching his old movies, didn't like Christmas and could be a terrifying father. His son reveals why he fears the comedy legend is in danger of being forgotten on the anniversary of his death...."