preceding year's ceremony, AMPAS created an Awards Presentation Review Committee to evaluate and determine why the telecast earned such a negative reaction from the media and the entertainment industry. The committee later determined that Carr's biggest mistake was allowing the questionable opening number to run for 12 minutes. Producer and former Directors Guild of America president Gilbert Cates, who headed the committee, said that Carr would have not received such harsh criticism if the number had been much shorter. Newly elected AMPAS president Karl Malden also commented on the last year's telecast, "Some of the people in the Academy felt the show got a little out of control." In September 1989, Cates was chosen as producer of the 1990 telecast. Malden explained the decision to hire him saying, "Cates, a veteran film and TV director known for his tasteful work in both media will attempt to rectify the damage the last Oscar show did to the Academy's reputation." The following January, actor and comedian Billy Crystal was chosen as host of the ceremony. "We are extremely pleased to have Billy host the show," Cates said in a press release justifying his choice. "His unique talents and his ability to handle the unexpected will be important assets this year." Cates christened the show with the theme "Around the World in 3 1/2 Hours" commenting that it would "a party thrown around the world". He also explained, "The world is changing, and hopefully the awards show is changing, matching the changes in the world." In tandem with the program's theme, several presenters announced the winners from various international locales such as Buenos Aires, London, Moscow, and Sydney, Australia. Several other people participated in the production of the ceremony. Documentary filmmaker Chuck Workman assembled a montage saluting "100 Years at the Movies" that was shown at the beginning of the telecast. Film composer and musician Bill Conti served as musical director for the ceremony. Dancer and singer Paula Abdul supervised the Best Song nominee performances and a dance number featuring the Best Costume Design nominees. Singer Diana Ross performed the Oscar-winning song "Over the Rainbow" in a tribute to the 50th anniversary of The Wizard of Oz. Box office performance of nominees At the time of the nominations announcement on February 14, the combined gross of the five Best Picture nominees at the US box office was $244 million with an average of