Film credits include:Year of the Comet with Louis Jourdan and Solomon and Sheba with Halle Berry.
Elmore James, Raun Ruffin,David White, Jim Weaver, Sam McKelton,
Faruma Williams, Floyd Williams and Avon Chandler.
Roberts has served as a special events musical director and supervisor for President Jimmy Carter, Ronald Reagan’s Kennedy Center Honors, Mrs. Lyndon Johnson, the Inaugural Gala of Governor Ann Richards of Texas, India’s Jazz Yatra Festival, Lincoln Center, Manhattan Plaza, Kool Jazz Festival, and St. Peter’s Jazz Church in New York City. His other musical associations include the Duke Ellington Orchestra, Cleveland Orchestra, Dance Theatre of Harlem, Henry Mancini, Al Green, Patti LaBelle, Bette Midler’s Harlettes, Eubie Blake, Bill Cosby, Harry Belafonte, Sammy Davis, Willy Nelson, Foreigner, Manhattans, Leslie Uggams, Ruth Brown, Freda Payne, Eartha Kitt, Della Reese, Lena Horne, Savion Glover, Paul Simon, Public Theatre, Metropolitan Opera Guild, Rock and Roll Hall of Fame, Richard Allen Center for Culture and Art, Morgan State Choir, Harlem Gospel Singers, American Idol, and President Barack Obama.
The Gospel According to Broadway, a Chapman Roberts concept chronicling 300 years of African American Sacred Music, was honored in 2007 with a recording by the BBC Concert Orchestra, Michael Terry Singers USA, and London Community Gospel Choirs, and is being prepared for a world tour.
The Gospel According to Broadway-Rehearsal… by rogermazz