Le paradis des riches (1978)

During a trip organized by a municipality to cheer up the loneliness of the elderly in summer, seven "little old men" visit Orly airport and decide to leave one day for Tahiti. Penniless, they get organized by living in the same apartment and stealing from stores to finance their future tropical adventure. But a private detective is on their trail, hired by the local shopkeepers who are fed up with the repeated petty thefts. The "gang" make him disappear and decide to leave for Tahiti.