The Cannes Film Festival's iconic Palme d'Or for best picture has helped place unknown directors on the global cinema stage; driven forward the movie careers of established film-makers; and transformed films into motion picture classics. A total of 19 films were in the running for the top award of worldwide film.
Known for the dark sense of humor he honed during his years as a ski bum, Ostlund made his big global breakthrough at Cannes in 2014, when his "Force Majeure" won the Jury Prize in the Un Certain Regard section where it premiered.
According to Into the Fade director Fatih Akin, Kruger made a bet with him months ago that their film would never make it to competition in Cannes, much less win an award. The film deals with the real-life series of racially motivated far-right terror attacks in Germany during the 2000s by the so-called NSU group (National Socialist Underground).
The jury also presented a special prize to Nicole Kidman.
"I can not accept this award without thinking of everyone who has been touched by an act of terrorism. you have not been forgotten", said a visibly moved Ms Kruger.
"The Square", a hard hitting commentary on the loss of humanitarian values and trust in contemporary society directed by Swedish filmmaker Ruben Ostlund, has won the Palme d'Or at the 70th Cannes film festival.
The film also won the critics prize awarded by the jury of the International Federation of Film Critics (FIPRESCI). A total of 26 films were vying for the coveted prize this year.