This morning TCM played one of those extras that would be shown with a movie, a newsreel, cartoon etc. This one was called:

This was a thumbnail sketch of the Revolutionary War, immigrants who gave all to become Americans. This has many recognizable faces and names in it ranging from Claude Rains of Casablanca fame--as a Jewish immigrant Haym Salomon, and Montague Love as General George Washington.
I liked that the studios in those days, cared to give people reminders on how we came to be-and what we are--unlike today.
I cant find the short subject vid anywhere but its a great little history lesson. However, I found something from Disney (back when they were great) called: Johnny Tremain.
The "Sons of Liberty March."
Son's of Liberty - YouTube
The entire movie:
Johnny Tremain full movie - YouTube