Sleep Tight(2003)

French filmmaker Claire Doyon makes her feature-length writing and directing debut with the drama Les Lionceaux, which translates to "Little Lions," but is given the English language title Sleep Tight. Lisa Lacroix and Marie Felix play two seemingly feral teenage sisters who inhabit a deserted island with their estranged parents. Soon a guy washes up on shore and changes things. Sleep Tight was shown at the 2003 Cannes Film Festival.