United Kingdom, June 25 -- Michael Cera used to turn down roles to stop himself becoming "too famous".

The 37-year-old actor has opened up on his decision to snub certain projects in the past, including "kids movies" and parts in franchises like the Harry Potter spin-off films Fantastic Beasts.

He told the Louis Theroux Podcast: "I did sort of, make a conscientious choice to limit my exposure a little bit, or just try and be a little more in control of it.

"Doing like, especially little kids movies. I had a big fear of doing things that would get me too famous."

Michael admitted he refused to "engage" with the Fantastic Beasts movies, which were based in the world of JK Rowling's Harry Potter novels.

He recalled: "I don't even know i...