Arnold Schwarzenegger has confirmed that previously announced sequels to three of his best-known films, The Terminator, Conan the Barbarian and Twins, all remain on course to enter production.

The former California governor needs a bona fide box-office smash after a lukewarm return to Hollywood with an expanded cameo in Sylvester Stallone's The Expendables 2 last year and a starring role in the middling action romp The Last Stand, in January. Speaking to Metro to promote the DVD release of the latter, Schwarzenegger said audiences could expect to see him in familiar roles in the near future.

"We're writing [Terminator 5] now," said the Austrian-born bodybuilder turned actor turned politician turned actor again. "There are three projects being written that involve me. One is Terminator 5, the other is a Conan movie that Universal is doing and there's the sequel to Twins, which is called Triplets. We'll all look quite different in that. The third triplet is Eddie Murphy, so figure that one out."

Schwarzenegger did not appear in the most recent Terminator film, 2009's Terminator Salvation, though his likeness was borrowed via digital technology for the movie's T-800 biomechanical attack units. Comedy Twins, from 1988, saw the actor team up with Danny DeVito as far-from-identical siblings. John Milius's Conan the Barbarian, from 1982, is considered the best film about Robert E Howard's Cimmerian warrior, and helped launched its star on the road to the Hollywood A-list.