As ballet teacher Vincent Cassel yells for her to "attack" the dance, Natalie Portman is thrown off her spin by Mila Kunis.
Kunis plays Lily, a fresh off-the-plane rival for Portman's role as the Swan Queen. The actress has said that she worked out seven days a week for up to five hours at a time to lose the 20 pounds she needed to for the role.
Titans of Comic-Con: Stars Re-Create Classic Characters (Photos)
- Exclusive Portraits of Robert Griffin III, Ronda Rousey, Kareem Abdul-Jabbar (Photos)
- MOBA: Inside the Biggest Sporting Event You've Never Heard Of (Photos)
- Emmy Awards 2014: The Nominees (Photos)
- Hollywood's Notable Deaths of 2014 (Photos)