Warwick, who's a cousin of the late singer, who died in 2012 on the age of 48 after an unintentional drowning, informed the Los Angeles Times, "I want them to let Whitney rest in peace."
"Leave her alone," Warwick mentioned. "Ten years [since she died] -- it's time to let her sleep."
"I Wanna Dance with Somebody," is about to star British actress Naomi Ackie as Houston and Ashton Sanders as singer Bobby Brown, who was married to Houston from 1992 to 2007.
The movie has been permitted by Houston's property, is being produced by her mentor Clive Davis, who signed her to Arista Records, and directed by Kasi Lemmons.