The film is a dramatisation of police interviews with Jon Venables and Robert Thompson and has already been shortlisted for an Oscar.
The pair – then aged ten – horrified the nation when they abducted the toddler and killed him before leaving his body on railway tracks in Bootle, Merseyside, in 1993.
Speaking on ITV’s Loose Women earlier today, Denise expressed her disgust: “The first I heard about the film was just before Christmas. They should have got in contact and let us know.
“I’m asking people to boycott it, I don’t think it should have been made in the first place, especially without James’s family knowing.