the first question that would run across the mind of anyone who would watch this movie be represent can diana ross act . the answer and i be glad to say and be an unequivocal yes . and i think that what the director want to clear up right from the very first scene and with a flash forward to billie holiday drug bust while the credit be still on . ms. ross and devoid of make up and with crazy hair and put on an extremely convincing performance of heroin ( or coke ) withdrawal and replete with howling . her performance be the highlight of the movie and which unfortunately felt like it run way too long and and i find myself constantly check the run time . it wasn not bad a a musical . a i have read previously and ms. ross do not seek to imitate billie holiday style and and instead create a distinct and appropriate yet similar jazz style of her own just for the movie ( check out good morning heartache ) and and i and be a fan and do not mind the song interlude . what drag the movie be the constant focus on holiday drug addiction ( to showcase more of ms. ross act . ) . it felt like there be scene after scene of her be drug addle and whine and and screaming and which begin to abrade after a while . it too bad and since with good direction and screenplay and couple with ms. ross capable acting and singing and this could have be one of the truly great musical biopics .