Here is historical footage of Martin Luther King Jr. discussing mistreatment. He was an American Baptist minister and activist who became the most visible spokesperson and leader in the civil rights movement from 1954 until his assassination in 1968.
This is the only surviving footage of Anne Frank filmed outside of her home in 1941. She can be seen sticking her head out of a window in the apartments above in this clip. Anne Frank watches as her newly married neighbors walk down the steps.