There are many more candid videos of Monroe available than I had realized. Including 1942 and 1944, which is pretty amazing. Other interesting movie are when she visited an orphanage:
And from 1955 when she was hanging out in Manhattan and a 14-year-old took these movies shots. An Ella Fitzgerald recording plays for the audio which is a nice and appropriate touch.
And when she attended the christening of Clark Gable's son. This was in spring 1961 just months after she was released. This is color footage and she really does look amazing. She appears at minute 2:11 and later at minute 3:17.