Mad Men star Christina Hendricks has opened up about the frustrations of auditioning in Hollywood and the fear of being rejected.

Speaking about her insecurities to Canadian magazine Flare, 38-year-old Hendricks said: "Someone could have just broken up with a redhead the other day and not want to hire me.

"I’ve been to a million auditions and have been rejected a million times, so it’s something that I’m used to."

She continued: "You’re either right for it or you’re not right for it. You could leave thinking you had the best audition in the world and they say you don’t look like the person I imagined.

"It has nothing to do with your talent."

Hendricks also speaks about her upcoming starring role in How To Catch a Monster, written and directed by Hollywood heartthrob Ryan Gosling, calling the experience "intimidating".

"Ryan called me and asked me if I was interested in doing this film and I said, ‘One, of course, yes, and two, why me? And three, I don’t want to disappoint you'. It’s the largest role I’ve ever had, so this is one I’m definitely aware of my anxiety about."

The film, due out in 2014, also stars Saoirse Ronan, Matt Smith and Eva Mendes.