Bryan Singer's Jack The Giant Killer has made some major headway in recent weeks in terms of building its cast. First it was announced that Stanley Tucci would be playing the villain and John Kassir and Bill Nighy would be doing the voice the two-headed leader of the giants. Then it was finally revealed that Nicholas Hoult, who will be playing Beast in this summer's X-Men: First Class, would be playing the title role. The biggest role that remains is the princess that Jack must rescue, but that's on the backburner for now as Ewan McGregor has joined the cast.

THR reports that the actor once known as Renton in Danny Boyle's Trainspotting and Obi-Wan in the Star Wars prequels has signed on to play the leader of the king's guard who ventures with Jack to kill giants and rescue the kidnapped princess. The search continues to find an actress that will play the lead female role, but two very much at the forefront are Adelaide Kane (Power Rangers RPM), and Eleanor Tomlinson (Alice in Wonderland). The long-delayed film is set to go into production this March in London.

Despite my very public dislike of the Star Wars prequels I have always loved McGregor as an actor and he's certainly a fine addition to what's shaping up to be a great cast.