Bonjour, j'ai besoin d'aide. Merci

Passive voice.

1) Children problems………..(describe) in the film "Libero"
2) Eddie Murphy………. (know) for his films such as "Ttrading Places " and "Beverly Hills Cop.
3) The film "Star Wars"...……….(direct) by Steven Spielberg.
4) The Cannes Film Festival………(found) in 1946