Attorneys representing murder suspect Amanda Knox have threatened to take legal action over new movie The Face Of An Angel.

The film, starring Kate Beckinsale and model Cara Delevingne, is based on the real life murder of British student Meredith Kercher in Perugia, Italy in 2007. Knox, 27, was convicted of killing her roommate, but later acquitted of the crime and released from jail in 2011.

She was convicted again earlier this year (14), but remains free as she appeals against the verdict, and her lawyers fear the new movie could have a negative effect on the case.

They are now threatening to take legal action against the production company behind the movie, BBC Films.

Knox's lawyer Luciano Ghirga says of the movie, "It implies that Amanda is guilty... There have already been at least two films and 12 books about the case. If the film is based even loosely on the murder in Perugia and if it is damaging to Amanda's image, we will be asking for damages, as we have done in other cases.'"