I'll add a few
- 8 1/2
great Fellini flic, surreal, lengthy - so take your time

and Mastroianni in excellent form as usual
- Deserto Rosso ('60)
feat. Monica Vitti!! Antonioni flic comes with great colours, scenography, settings etc pp. as per usual
-
Casanova
another Fellini one, with a fun Don Sutherland
-
Il Grido ('57) another Antonioni one. powerful drama, was able to see it in a theatre some years ago and sheech..depressing but uttely beautiful
Other movies in order of location:
Mépris ('63) - great French flic but takes mostly part in Italy and there also on
Capri and in the Casa/Villa Malaparte - so that's basically a must watch. Features B. Bardot, Jack Palance and even Fritz Lang as himself (!!). Strictly iconic imho
La Dolce Vita ('60) -
Roma, very entertaining
Profondo Rosso ('75) - Roma, sleazy horror by Dario Argento
Don't Look Now - by Nicolas Roeg (great director!) but plays almost exclusively in
Venice. In my top 5 movie list. Features a young Don Sutherland but is a thriller/surreal horror.
And not playing in Italy but London seen through Italian eyes:
Blow Up by Antonioni, another fav of mine. Love David Hemmings.
Haven't seen Sado and Il Vitelloni so far but heard nothing but good things so def will do so. (As with the Leopard which is supposedly superb as well - as
@Scepticalscribe already mentioned)