In what year did the historical film drama based on the true story of Charles Horman win The Palme d'Or?
1982 Cannes Film Festival: The 35th Cannes Film Festival was held from 14 to 26 May 1982. 1982 Cannes Film Festival:  The Palme d'Or was jointly awarded to "Missing" by Costa Gavras and "Yol" by Şerif Gören and Yılmaz Güney. Missing (1982 film): Missing (stylized as missing.) Missing (1982 film):  It is based on the true story of American journalist Charles Horman, who disappeared in the bloody aftermath of the US-backed Chilean coup of 1973 that deposed the democratically elected socialist President Salvador Allende.
i don't know