Task: Explanation
Input (English): Behind the Candelabra is a 2013 American drama film directed by Steven Soderbergh. It dramatizes the last ten years in the life of pianist Liberace and the relationship he had with Scott Thorson. It is based on Thorson’s memoir, "" (1988). Richard LaGravenese wrote the screenplay. Jerry Weintraub was the executive producer. It premiered at the 2013 Cannes Film Festival on May 21, 2013 and competed for the Palme d'Or. It aired on HBO on May 26, 2013 and was given a cinematic release in the United Kingdom on June 7, 2013. The film received general acclaim from television critics including praise for the performances of Michael Douglas and Matt Damon. Question: who wrote the screen play for the opening night film at the 2013 Deauville American Film Festival ? Answer: Richard LaGravenese
Output (English):  Richard LaGravenese wrote the screenplay.