Two of his shots (the kiss between Elizabeth Taylor and Richard Burton and Anita Ekberg shooting arrows at the photographers) were considered among the thirty most famous photos and his name appears (is listed) next to those of Andy Warhol and Cecil Beaton.

Nevertheless, the archive of over a million photographs by Geppetti has remained largely unexplored and only a small part of its cultural and artistic potential has been exploited.

During the "Dolce Vita" years he took epoch-making photographs, among the others the first Brigitte Bardot's nude and the kiss between Liz Taylor and Richard Burton – both married to others at the time, but his activity goes on over the student protest and Italian period of terrorism called "anni di piombo".

Their photographs are published on Time Magazine, Life, Vogue, Donna Karan and are exhibited in some galleries in Rome, Milan, London, Lisbon, São Paulo, Saint Petersburg, New York, San Francisco, St. Tropez, Mosca, Toronto, Haifa, Madrid, Metz.

In 2010, for the fiftieth anniversary of the movie La dolce vita, 120 pictures among the most fascinating was exhibited at National Museum of Cinema in Turin.