 Complete the following phrase:  Aside from the overall plot of the film and elements already present in the stage musical, many direct references to The Supremes, Motown, or RBsoul history in general are included in the film. In one scene, Effie saunters into Curtis office and discusses Rainbow Records latest LP, The Great March to Freedom, a spoken word album featuring speeches by Martin Luther King Jr. This LP is an authentic Motown release, issued as Gordy 906 in June 1963. A later scene features Curtis and the Dreams recording in the studio, while a riot rages outside. By comparison, Motowns Hitsville U.S.A. studio remained open and active during Detroits 