Mighty Aphrodite (1995)

In New York, Amanda (Helena Bonham Carter) convinces his husband Lenny (Woody Allen) to adopt a child. Years later, after he proves to be extremely intelligent, the adoptive father sets out to find the biological mother who, he believes, must be a genius. Instead, he finds a young woman who is a prostitute (Mira Sorvino) with a scarred past and a very good heart.