Mischa's comments were made during an interview with Harpers & Queen in 2005, during which she discussed seeing the actor at a shoot in Malibu with her then-publicist Craig Schneider.
It is said that this meeting took place shortly after Leo's on-again, off-again relationship with Gisele Bundchen ended.
Mischa claimed that Craig advised her to sleep with Leo for the sake of her career, but she declined, stating that she wasn't interested in older men.
She even asked the publication, "Isn't Leo, like, 30 or something?" The resurfacing of this interview comes as Leo faced criticism for being spotted with Eden Polani, a 19-year-old French-Israeli model.
Although sources close to Leo denied that the two were dating, rumors have continued to circulate about their relationship.