CAMBRIDGE, Mass. (AP) -- Natalie Portman is advising graduating Harvard seniors to use their inexperience to their advantage.

Natalie Portman addresses an audience during Harvard College's Class Day (AP Photo/Steven Senne)

The Academy Award-winning actress spoke Wednesday at Harvard College's Class Day. She told graduates that not knowing their limitations can help them take risks that can lead to life-changing rewards.

She cited as an example her work in "Black Swan," which won her an Oscar for best actress in 2010. Portman says she might not have taken that role if she knew how much work it would require to pull off the movie's ballet moves.

The 33-year-old actress graduated from Harvard with a psychology degree in 2003.

Portman's address was a highlight of the day's events, which also included award presentations and student speeches. Harvard seniors receive their diplomas Thursday.

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