The clothing store Claude Bnoucci
43.703968°N 7.331156°E

Steve Martin after a purchase.

Steve Martin shops at the store.  The store was set up to look like a clothing shop in the movie. The park across the street can also be seen in the scene.

Dirty Rotten Scoundrels (film)

Dirty Rotten Scoundrels is a 1988 American comedy film directed by Frank Oz and starring Steve Martin and Michael Caine. The screenplay by Dale Launer, Stanley Shapiro, and Paul Henning focuses on two con artists who ply their trade on the French Riviera. Although it is not officially credited as a remake of Bedtime Story, it closely follows the plot of the 1964 film starring David Niven and Marlon Brando.

• http://en.wikipedia.org/wiki/Dirty Rotten Scoundrels (film)