Blog · May 19, 2015Natalie Portman In Lanvin at ‘Sicario’ Cannes Film Festival Premiere Natalie Portman was in attendance at the Cannes Film Festival premiere of ‘Sicario’ in Cannes, France on Tuesday May 19, 2015 She wore a jade- green Lanvin Fall 2015 gown that has a plunging neckline.