Helena Bonham Carter is in talks to board McG's Terminator Salvation: The Future Begins, the fourth installment in the franchise kicked off by James Cameron in 1984. According to The Hollywood Reporter, roles in the new film have been kept under wraps, but insiders described the Bonham Carter role as small but pivotal.

The addition of Bonham Carter -- who in addition to being nominated for an Oscar for 1998's The Wings of the Dove is a five-time Golden Globe nominee -- would bring a prestige element to the summer tentpole.

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Principal photography started last month in New Mexico, with the hopes that most exteriors will be shot before a potential SAG strike. Warners is scheduled to release the action film in May.