“Rustin” is a movie that’s almost as good as its intentions — which are in the stratosphere, thanks to its subject matter (the civil rights movement) and two of its executive producers (Barack and Michelle Obama, through their Higher Ground Productions).
The title figure is Bayard Rustin, a champion of the civil rights struggle who has not gotten his props until recently. Colman Domingo, recently stealing scenes in “Zola” and “Candyman,” plays Rustin with a cagey mix of flamboyance and…