Simplify the following text for a Grade 10 native English-speaking person.
Original: She is best known for her role as Sylvia in the 1960 Federico Fellini film , La Dolce Vita , which features the legendary scene of her cavorting in Trevi Fountain alongside Marcello Mastroianni .
Simplified: She is most famous for the film La Dolce Vita ( 1960 ) , directed by Federico Fellini .