For a small, narrow thoroughfare, rue Servandoni (Gallery III) gets more than its share of attention on film. Tom Hanks can be seen walking nervously down the alley in the movie version of “The Da Vinci Code,” and Sarah Jessica Parker takes a stroll on its blue-grey cobblestones in the last episode of the TV series “Sex and the City” -- the episode in which Carrie moves to Paris but is pursued by her friends and ultimately rescued by Mr. Big. The alley has a literary history, too. There’s a small, lovely hotel at one end facing the Luxembourg Gardens where William Faulkner lived and wrote in the 1920’s.