The 30-year-old model and 26-year-old actress wore white ensembles to the 2015 Cannes Film Festival on Wednesday and Thursday, respectively.
Kroes showed off her gams in an Altier Versace gown with thigh-high slit and asymmetrical cutout detail, while Kravitz donned a Valentino dress made of flowing, sheer fabric.
Kravitz portrays Toast in new George Miller film Mad Max: Fury Road, which screened out of competition at the film festival Thursday. The movie stars Tom Hardy and Charlize Theron, and opens in theaters Friday.
Kroes came to fame as a Victoria's Secret model, but left the brand earlier this year. She remains an ambassador for L'Oréal Paris, and is also known for her campaigns with such brands as Versace, Valentino and Calvin Klein.