Probably one of the first films with Simona Valli is "Mazochista almok". This is hungarian production from 1992. She is listed as Szalay Moni (perhaps it's her real name?). She looked in it little different than in later italian and french films so at first I was not sure if it was Simona Valli. But recently I found hungarian site which confirms her appearance in this film.
Link: http://193.178.119.62/fenypont/cent.asp?cid=36512
This film was released in Poland under the title "Masochistyczne marzenia" (masochistic dreams).
Another rare film with Simona Valli is "Segretaria perversa". In this film she is listed as Alice Doria so it must have been released in the same period as Incontro a Venezia. It was also released in Poland as "Perwersyjna sekretarka"
I suspect that Orgie in Venise and Incontro a Venezia is the same film. Can anybody confirm?
Simona Valli is one of my favorit actress. Does anybody know what happened to her after she quit porn?