The Missoni family held a dinner after the show to fete the book.
Tomei and MacDowell attended the brand’s 50th anniversary show.
The Italian actress, producer and director Maria Grazia Cucinotta took a break from her schedule to sit front row at the Ermanno Scervino show.
For its inaugural collaboration, the So-Milano boutique is selling merchandise selected by the designer, including art objects and books.
Both were in town also for the charity tennis tournament Djokovic & Friends.
All of the clothing is part of the private fashion collection of Cleo and Mark Butterfield.
She will front the brand’s spring accessories collection.
Sarah Paulson and Karl Ove Knausgaard will toast the honorees and Rufus Wainwright will perform at the Oct. 8 party.