Munn to star in Hummingbird

Olivia Munn has replaced Zoe Saldana in an upcoming action-thriller "Hummingbird".

The 37-year-old star was roped in after Saldana bowed out of the project citing scheduling problems due to the "Avatar" sequels.

The film is being helmed by Marcus Kryler and Fredrik Akerstrom with John McClain writing script.

The story revolves around a female black-ops assassin, whose latest mark forces her to confront her true identity.