Please understand that President Barack Obama Jr. also graduated from Columbia, University. Now Columbia University is just in Harlem where Black folk live. There is no doubt that Dr. Ambedkar connected with Black Americans. In the scene in the movie he is at specifically an Ethiopian Church. There is the Abyssinia Ethiopian Church established in Harlem in 1808 before Slavery ended in America. The Movie Scene shows Dr. Ambedkar at the Black Church in Harlem before he departs to got to law school in London. Here is your ill-refutable evidence of Dr. Bhimrao Ambedkar and the Black Community. This was put in the movie to show the connection.