Comme un caillou dans la botte -- Film Description:
"Florence—museums, restaurants, churches, tourists. And street vendors, who are almost entirely ignored. They come from Senegal, and are trying to survive by selling selfie-sticks and other trinkets. They also have to hide from the law, because street vending is illegal in the city's historic centre. Hélène Choquette [...] sought out the vendors, trying to understand, both in Italy and Senegal, their complicated predicament, their dreams and their disappointments."
-- Québec Cinéma

Source:
"Québec Cinéma : Films A-Z." Québec Cinéma. https://quebeccinema.ca/films-a-z. [in French]