The ad especially points out that the character played by Jamie Foxx is not meant to be a representation of Motown founder Berry Gordy, Jr. Earlier this month Smokey Robinson, who wrote many songs for The Supremes, slammed the movie for being a blatant, intended portrayal of The Supremes and Motown, saying that none of the characters are disguised enough as fictional, unconnected people. Though Foxx has defended his performance as not being based on Gordy, both Beyoncé Knowles and Jennifer Hudson have publicly mentioned some channeling of Diana Ross and Florence Ballard, respectively.
The sad thing is that Robinson pretty much added to the public association of Dreamgirls with The Supremes and Gordon. Now the ad further alludes to the connection. But audiences should never accept a movie as truth anyway. People ought to realize that there are only dramatized versions of real events and characters in even a biopic, historical film or other feature described literally as true, let alone a film labeled as "based on" or "inspired by." When or if someone actually does make an authorized telling of the real story of The Supremes, the result shouldn't be any more believed than the fiction of Dreamgirls. Well, I guess it can be believed, but not accepted as complete truth.