"Bienvenue chez les Ch'tis" is a French comedy film released in 2008, directed by Dany Boon. The story follows Philippe Abrams, a post office manager from the south of France, who is transferred to the northern region of Nord-Pas-de-Calais. Initially reluctant, he discovers the warmth and charm of the local people, known as the Ch'tis. The film explores themes of regional identity and cultural differences, showcasing the humor and hospitality of the northern French. It became a massive box office success in France, highlighting the importance of understanding and appreciating diverse cultures within the country.