Many people have played Odette, but usually Odette and Odile are played by the same soloist.

Odette (the white swan) and Odile (the black swan)

Natalie Portman plays the main character who becomes the black swan, Mila Kunis is also in the movie.

Odile and Yvette at the Edge of the World - 1993 is rated/received certificates of:

USA:PG

Which swan are you talking about?

The plot of the story is Princess Odette, the white swan, loves Prince Siegfried. Von Rothbart, the evil man, changes Odette into a swan by day but a girl by night, although his reasoning's are never made clear. His daughter, Odile, becomes the black swan and tricks Siegfried into confessing his eternal love for her, thinking it was Odette. Odette finds Siegfried and shows him that she is not Odile and kills herself because she can not stand being a swan. Because Siegfried is in love with her, he kills himself too. The ending scene is them gaily floating toward heaven.

See the American Ballet's performance in related links.