There is a smorgasbord of films like this at the U. of South Carolina video archives, including lengthy segments from many big league spring training camps in the early 1930s:
https://mirc.sc.edu/islandora/search...%28baseball%29
The beauty of these for me is that they are outtakes, not the polished newsreels, so you get to see and hear the players and other personalities as they really were.