The Escapees (1981)

Michelle, a troubled teenager, has been returned to an mental asylum run by nuns after escaping and is put in a straitjacket and then locked in a room. She manages to get the attention of a new patient, Marie, a quiet girl who just seems to sit in the garden in a rocking chair. Marie helps Michelle by removing her straitjacket, and the pair run off together. At first, Michelle wants to leave on her own, but Marie wants to go with her and the two form a tenuous friendship. They follow a group of burlesque dancers who they encounter in an old scrapyard as they roam the countryside. They befriend a thief named Sophie, who helps them escape when the burlesque show is busted. Ending up in a shipyard, they connect with bar owner Madame Louise, who takes in runaways. Sophie convinces her sailor boyfriend to not only stow her away for the next voyage, but the other two as well.