Updated

U.S. student Amanda Knox told a court Thursday that a movie documenting the murder of her British roommate and Knox's trial is an "invasion of my life," her lawyer said.

Knox made the statement at a civil court hearing, held behind closed-doors, aimed at halting circulation of the film "Amanda Knox: Murder on Trial in Italy."

"I'm upset over this invasion of my life, and for the speculation at my expense," Knox told the court, according to her lawyer Carlo Dalla Vedova.

Dalla Vedova noted the movie aired in February on the Lifetime television network despite his legal attempt to block it. He said it is also is available on Lifetime's website, and on video streaming sites. He also wants trailers for the movie, which features "Heroes" star Hayden Panettiere in the title role, removed from other sites where they appear.

"Before it was a threat of damage. Today there is ongoing damage," Dalla Vedova said, citing Knox's appeal on her murder conviction. The appeals trial continues Saturday.

"It is today causing real damage to Amanda, to the Italian justice system and to her privacy," he said, citing references to Knox's sex life and medical history made in the film.

Les Eisner, a spokesman for Lifetime's parent company, A&E Television Networks, said Thursday that the network had no comment.

Dalla Vedova said the civil case was delayed until July 4 so Lifetime can respond to a summons to appear before the court.

Knox was convicted of murdering Meredith Kercher in the apartment they shared as exchange students in Perugia, and sentenced to 26 years in prison. Her co-defendant and ex-boyfriend, Raffaele Sollecito of Italy, also was convicted and sentenced to 25 years.

They both deny wrongdoing and have appealed the 2009 verdict.