Naman Ramachandran Fremantle has won a bidding war for exclusive rights to produce a high-end documentary about Raffaella Carrà, the iconic Italian singer, actor, dancer and TV host who was a pop culture sensation across Europe and Latin America.Carrà, who died in July at 78, rose to fame in Italy as a singer and dancer during the 1970’s as co-host of the variety show “Canzonissima,” where she plugged her original songs directly into its dance and music numbers, including the show’s opening