He is survived by his third wife Martina Zborilova and his four sons.
Writer-producer Larry Karaszewski was among the first artists who took to Twitter to pay tribute to Forman this weekend.
"Milos Forman was our friend and our teacher. He was a master filmmaker - no one better at capturing small unrepeatable moments of human behavior. We made two movies together and every day spent with him was a unique adventure. Milos loved life. I will miss his laughter," Karaszewski tweeted.
"Milos Forman has left us. Genius of cinematography and master in the portrayal of the human condition. RIP," actor Antonio Banderas wrote in his own post.
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