United Kingdom, June 3 -- Ben McKenzie claims using cryptocurrency is effectively like "playing in an unregulated, unlicensed casino".

The 46-year-old actor and author - who is best known for portraying Ryan Atwood in teen drama 'The OC' in the 00s - recently shot a new 90-minute documentary film, 'Everyone is Lying to You For Money', in which he delves deeper into the world of crypto.

Ben - who has an economics degree, and has penned book 'Easy Money: Cryptocurrency, Casino Capitalism, and the Golden Age of Fraud' - told The Sunday Times newspaper: "Crypto can't actually do anything in the real world, except illegal activity that you wouldn't do otherwise.

"At best, you're just transferring money, real money, between different players...