© Getty US actor Joaquin Phoenix arrives on May 28, 2017 for the closing ceremony of the 70th edition of the Cannes Film Festival in Cannes, southern France. / AFP PHOTO / Anne-Christine POUJOULAT (Photo credit should read ANNE-CHRISTINE POUJOULAT/AFP/Getty Images) Joaquin Phoenix has vowed to wear the same suit to every awards show this year to help reduce waste.