Heidi Klum and her 21-year-old daughter, Leni Klum, made a rare joint appearance at Venice Film Festival's opening ceremony. The mother-daughter duo stepped out on the red carpet Wednesday, August 27, wearing similar gowns in different colors: Heidi's silky dress was blush pink, with sheer cutouts on the bodice and a bustier neckline. Meanwhile, Leni sported a black version with an open back and low-rise skirt. Both women wore their hair long and accessorized with striking statement necklaces, Heidi's diamond and Leni's emerald.