California Suite co-stars Jane Fonda and Michael Caine are to reunite onscreen in Italian director Paolo Sorrentino's new film Youth.

Rachel Weisz, Harvey Keitel and Paul Dano have also signed up to work on the Oscar-winning filmmaker's latest project, which centres on two old friends vacationing together at a hotel at the foot of the Alps, according to

Sorrentino is currently in demand after picking up the Best Foreign Language film Oscar in March (14) for his acclaimed movie The Great Beauty.