Reports said that there has been a concerted attempt by certain members of the online community to have Saldana, 34, removed from the role, as they do not believe her to be dark-skinned enough for the part, reported Daily Mail.
There has also been disapproval from those who were closest to the late iconic singer.
Nina's daughter Simone Kelly has taken offense with the decision to cast Saldana and has taken to her Facebook page to voice her concerns.
"Appearance-wise this is not the best choice," she wrote.
The actress is also rumoured to be starring in the forthcoming "Avatar" sequel.
