Question: 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?
Sentence (from "Prize of the Ecumenical Jury"): SIGNIS and Interfilm appoint ecumenical juries at various international film festivals, including Cannes Film Festival (where The Ecumenical Jury (French: "Jury Œcuménique" ) is one of three juries at the film festival, along with the official jury and the FIPRESCI jury), Berlin International Film Festival, Locarno International Film Festival, Montreal World Film Festival and the Karlovy Vary International Film Festival.
Relevant evidence: No