Alfonso Cuarón did not give the actors of Roma (2018) the script. “Todos sabían que había un guion pero nadie, ni los actores, ni staff, lo vio” (Everyone knew there was a script, but nobody saw it, not the actors, not the staff), he told Time Out México. He shot the film in chronological order. (Video in Spanish.)
A February 2019 report on the film said that each morning, during the 108 days of shooting, Cuarón gave lines to some actors and instructions that contradicted those lines to others.