rihanna & whitney*Folks are ready to make a film about  fallen superstar Whitney Houston, but mama Houston is not happy with one of the rumored casting choices.

According to reports, Rihanna also wants to play the role of the iconic singer, but Cissy Houston is not having it, according to the Enquirer.

The 78 year old declared that the racy Caribbean singer isn’t doing anything that has to do with her daughter.

“Over my dead body!” she said, according to a source. “Cissy believes Rihanna celebrates everything she hated about Whitney’s life – the drugging, the boozing, the abusive relationship,” the source continued.

Maybe true – the Enquirer reported at the beginning of the year that her friends were encouraging her to go to rehab and slow down.

“In spite of what anyone thought about Whitney, she sees her as a God-fearing Christian who loved the Lord,” said the source.

Hmm, wonder how Cissy would feel about Bobbi Kristina playing her mother, since she’s also thrown her hat into the ring?