Rufus Sewell looks set to take on the role of Autolycus in Hercules alongside Dwayne 'The Rock' Johnson, who will star as the mythological Greek hero.

The English actor will portray Autolycus - who is the son of Olympian god Hermes and has a helmet to make him invisible, Deadline reports.

The script has been loosely adapted by Ryan Condal from the comic series Hercules: The Thracian Wars, and Brett Ratner will helm the motion picture, which will see Hercules working as a mercenary after renouncing his mythological roots.

Norwegian actor Aksel Hennie will star alongside Johnson and Sewell as madman warrior Tydeus and 'The L.A. Complex' beauty Cassie Steele has been linked to the role of Aphrodite.

Earlier this week, Johnson revealed he has been on a "crazy diet" to ensure he is in peak physical fitness for his super-human role, which has involved him eating "six to seven times a day."

The 40-year-old star told BANG Showbiz: "In terms of training, it all depends on what I'm doing that day. It all depends on what the goal is. Right now I'm prepping for 'Hercules' so the diet is a crazy diet. I eat six to seven times a day."