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If asked which long-running collaboration between an Italian director and actor has produced the most consistent cinematic results, your average American would likely say Martin Scorsese and Robert De Niro. Never mind, of course, that neither Scorsese nor De Niro are actually Italian-born. For those who think Goodfellas is the end-all-be-all of Italian cinema, film historian Max Alvarez has not one but two better answers: Federico Fellini/Marcello Mastroianni and Michelangelo Antonioni/Monica Vitti. In this lecture, part of the Smithsonian Residents’ “Cinematic Collaboration: Dynamic Duos in Film” series (which, incidentally, kicked off in early March with a discussion on the Scorsese/De Niro connection), Alvarez discusses the now-classic films each pair worked on together, including Fellini’s La Dolce Vita and 8 1/2 as well as Antonioni’s L’Avventura and La Notte. Of the two, Fellini’s films are more rooted in neorealism; Antonioni’s works, meanwhile, gravitate more toward existentialism. Either way, both directors’ films are decidedly closer to their Italian roots than, say, the works of Scorsese. Alvarez speaks at 1 p.m. at the S. Dillon Ripley Center, 1100 Jefferson Drive SW. $20. (202) 633-3030.