Angelina Jolie, Cameron Diaz and Halle Berry will join previously reported presenters Tom Cruise, Tom Hanks and Jennifer Lopez.
Telecast producers are Brian Grazer and Don Mischer.
Milla Jovovich will host the Academy of Motion Picture Arts and Sciences' Scientific and Technical Awards Feb. 11 at the Beverly Wilshire in Beverly Hills. Jovovich will present 10 awards to 30 individual recipients during the evening.
Academy Awards for outstanding film achievements of 2011 will be presented Feb. 26 at the Kodak Theatre at Hollywood & Highland Center, and televised live by the ABC Television Network. The Oscar presentation also will be televised live in more than 225 countries worldwide.
For a list of this year's Oscar nominations, click here.