Ben Affleck, John Goodman and Bryan Cranston have walked the red carpet at the London Film Festival.

They've premiered their new movie Argo, which Ben stars in and directs.

His cast members Bryan and John dished the dirt on what Ben was like as a boss, and although they praised his attention to detail and directorial skills, they were quick to tease him.

Bryan said: "He comes to work every day with a riding crop, and if he's not pleased with your work he gives you a little swat!"

He went on to add: "He's remarkably calm, passionate about the subject and creates an atmosphere that is very relaxed."

John Goodman said everything was "so richly detailed it was a pleasure to be on the set".