Here's a link for De Niro/Scorsese fans:
Sock it to me baby ! where you'll also find a poll.

Personally I really like :
1) Goodfellas
2) New York, New York
3) Taxi Driver

"Come heavy or not at all." Uncle Junior to Tony S.
"Nenti dire ca nenti si capi" come disse quello. (Say nthg when U know nthg.)
"Chi non ci vuole stare, se ne vada." (If U don't like it here, go somewhere else.)