The 1970 anti-Vietnam War film, o.k. was entered into the 20th Berlin International Film Festival, but led to a scandal that forced the collapse of the festival without the awarding of any prizes.
Film anti-Perang Vietnam buatannya, o.k. masuk dalam Festival Film Internasional Berlin ke-20, namun sebuah skandal memaksa film tersebut disingkirkan dari festival tersebut tanpa meraih penghargaan apapun.