United Kingdom, Sept. 2 -- Channing Tatum has felt like "the radio contest winner" in Hollywood.

The 45-year-old actor is one of the biggest names in the movie business - but Channing has always struggled with his self-belief.

The actor - who worked as a stripper and as a model before finding success in the film industry - told Variety: "Anytime I see myself on the screen, it doesn't feel like a real movie. I see everybody giving these incredible performances, and I don't believe myself."

Channing confessed to being surprised by his success in the movie business.

He said: "I always felt like the radio contest winner.

"I got called in at the right time, and I got the tickets backstage, and no one told me to leave. And once you let all...