Some movie ideas reflecting Black History month, either in regards to being about slavery or the civil rights movement or because they’re history-based movies with a young Afro-American hero or heroine.
Akeelah & The Bee (2006)
A Connecticut Yankee In King Arthur’s Court (1989)
Cool Runnings (1993)
Forever Young, Forever Free (1975)
Glory (1989) (14+)
Nightjohn (1996)
Passing Glory (1999)
Race To Freedom: The Story Of The Underground Railroad (1994)
Roots (1977) & Roots: The Next Generation (1979) (TV Mini-series, both 14+)
Ruby Bridges (1998)
Selma, Lord, Selma (1999)
Solomon Northup’s Odyssey (1984)
To Kill A Mockingbird (1962)
Time Travelling With Kids 
Glory (not Passing Glory), a film about the buffalo soldiers in the Civil War. Denzel Washington and Morgan Freeman.
I didn’t initially include Glory because of (a) its R rating and (b) I haven’t personally watched it, but have added it with an age caution.