What was the common last name of the brothers honored in 1990. They won two Oscars in 1965 for Best Original Score and for Best Original Song ("Chim Chim Cher-ee"). B.J. Novak and Jason Schwartzman played these brothers in 2013's Saving Mr. Banks. What was the last name of the brothers who have seen a resurgence in their work with the recent stage musicals Chitty Chitty Bang Bang and Mary Poppins?
(Richard & Robert) Sherman