Perugia, November 30 - Lawyers acting on behalf of Amanda Knox, the young American acquitted for the murder of British Erasmus student Meredith Kercher in Perugia in 2007, cautioned private broadcaster Mediaset not to screen a televison film based on the story on Monday as planned. 'Amanda Knox: Murder on Trial in Italy' was first screened in the US in 2011 amid strong opposition from the protagonists' families and lawyers. "There is a trial underway and so we consider the broadcast to be untimely," lawyer Luciano Ghirga told ANSA. Knox said she did not like the film and "has asked us what we can do to prevent it being shown in Italy," he added. The young woman was convicted of murdering Kercher, 21, together with her then boyfriend, the Italian Raffaele Sollecito, by a court of first instance in December 2009 and the pair were respectively sentenced to 26 and 25 years in prison. Their guilty verdict was subsequently overturned two years later by a court of appeal. The Perugia prosecutor's office and Kercher family contested the decision and their case is set to be heard by the supreme Court of Cassation, Italy's highest court, next March.