The 20-year-old catwalk icon appeared on the red carpet of the annual film extravaganza wearing Alexandre Vauthier's pale pink gown with a plunging sweetheart neckline, which did not stay in its place, reported Us Weekly.
Dressed in a high-slit cut dress, Bella exposed her undergarments as she posed for the photographers at the screening of "Ismael's Ghosts" with her father Mohamed Hadid.
Last year, the model had donned a red halter Alexandre Vauthier gown with a high-slit and plunging neckline and suffered the same malfunction.