Continuity mistake: When RBG leaves for court (about 30 minutes from the end the movie) her brooch is on the right lapel of her black suit and when she gets out of the cab, it is on her left.
Continuity mistake: When talking in the office her handbag changes from right to left arm in one shot.
Continuity mistake: When her daughter is watching Ruth Bader Ginsburg pulling notes from a bulletin board, during their conversation the amount of cards on the board changes between shots.