"the canon of Black History Month standards, somewhere between your 12th viewing of Lee’s Malcolm X and Ava DuVernay’s Selma."

It's interesting that you cite two very flawed films. Spike Lee, a liberal, downplayed Malcolm X's criticism of capitalism and deceptively included the bit where he made a white girl cry by telling her she could do nothing to help, but left out the part where he said he was sorry for what he had done:

"I regret that I told her she could do ‘nothing.’ I wish now that I knew her name, or where I could telephone her, and tell her what I tell white people now when they present themselves as being sincere, and ask me, one way or another, the same thing that she asked. ... Well, I’ve lived to regret that incident….Something like this kills a lot of argument. . . I tell sincere white people, ‘Work in conjunction with us… Let sincere white individuals find all other white people they can who feel as they do – work trying to convert other white people who are thinking and acting so racist."

As for Selma, it badly misrepresents LBJ because the director wanted to present the civil rights story as being purely about black people instead of an alliance of black and white people who worked together to end an unjust system created by the rich.

That said, I completely agree Fred Hampton needs to be better known. I highly recommend this speech of his: https://www.marxists.org/archive/hampton/1969/11/class-struggle-godamnit.htm