The Red Balloon (French: Le Ballon rouge) is a 1956 fantasy featurette directed by French filmmaker Albert Lamorisse. The thirty-four minute short, which follows the adventures of a young boy who one day finds a sentient, mute, red balloon, was filmed in the Menilmontant neighbourhood of Paris.
It won numerous awards, including an Oscar for Lamorisse for writing the best original screenplay in 1956 and the Palme d'Or for short films at the 1956 Cannes Film Festival. The film also became popular with children and educators. This is the only short film to win the Academy Award for Best Writing (Original Screenplay) and to receive a nomination for anything besides Best Live Action Short Film.
Lamorisse used his children as actors in the film. His son, Pascal Lamorisse, plays himself in the main role, and his daughter, Sabine, portrays a little girl.
(Summary from Wikipedia)