And on the carpet opening night, his fun-loving ways spread to follow juror Agnes Jaoui, a French actress.
Here he's having some fun with follow jurors Jessica Chastain and Pedro Almodóvar.
The press was putty in his hands at the jury press conference, where he was flooded by people seeking autographs.
But the biggest highlight so far at Cannes is the presence of Will Smith, here giving a peace sign. He's on the Cannes jury deciding the festival's winners.
next slide will load in 15 secondsSkip AdSkip AdCouple T.J. Miller and Kate Gorney gave the photographers a show on the carpet.
The stars of Todd Haynes' latest movie "Wonderstruck," Michelle Williams and Julianne Moore, attended the movie's premiere.
As did "xXx: Return of Xander Cane" star Deepika Padukone.
Robin Wright also attended the premiere.
... at the premiere for the movie "Loveless."
next slide will load in 15 secondsSkip AdSkip AdRatajkowski also graced the red carpet the next night...
Hadid's friend, fellow model Emily Ratajkowski, wasn't going to be outdone, though.
And, just as we saw last year, her dress had the photographers going crazy.
Bella Hadid graced the red carpet on opening night.
next slide will load in 15 secondsSkip AdSkip AdAlso, Susan Sarandon, Julianne Moore...
Noamie Harris was also there. She's coming off her Oscar best supporting actress nomination for "Moonlight."
"Ismael's Ghosts" stars Marion Cotillard.
Here's Elle Fanning at the festival's opening night for the movie "Ismael's Ghosts." She stars in the anticipated Cannes title "The Beguiled."