The year that the film "Paulina" won the Cannes Film Festival Nespresso Grand Prize, who were the Presidents of the Jury for the main competition?
2015 Cannes Film Festival: The 68th Cannes Film Festival was held from 13 to 24 May 2015. 2015 Cannes Film Festival:  Joel and Ethan Coen were the Presidents of the Jury for the main competition.
i don't know