'Youth' trivia and fun facts

Sorrentino wrote the script with Michael Caine in mind as the main character.

Michael Caine wear dark-framed glasses because they make his hair appear to be whiter.

The film cast includes three Oscar winners: Michael Caine, Jane Fonda and Rachel Weisz.

When Rachel is lying in the sun, talking to the mountainier, her hand in her hair is almost never in the right place.

Jane Fonda became interested in the role of Brenda after friend Al Pacino had told her that the part was "written for you." Another actress had been cast but dropped out, and so Fonda had her agent secure the role on her behalf.