The Academy Award-nominated actress said she has started her own production company and is interested in making comedies like "The Hangover" for women.
In the January 2011 issue of Vogue magazine, Portman said women are typically "not allowed" to be "beautiful and funny." She also believes it's frowned upon for females to be vulgar.
Her latest movie "Black Swan" is now in theaters.
The January issue of Vogue goes on sale nationwide December 21.
The Associated Press contributed to this report.