United Kingdom, May 3 -- Jonah Hill found his sudden fame "scary".

The 42-year-old actor became a household name following his breakout role as high school senior Seth in 2007's Superbad and while the sudden attention he and his co-star Michael Cera received could be "exciting", he also found it uncomfortable.

Speaking during a special Sirius XM-hosted live taping of the Smartless podcast, Jonah said: "It was psycho.[Michael and I] couldn't walk around and it was so exciting and kind of scary."

Fans struggled to separate Jonah and Michael from their characters in the film, so they would always attract attention.

He said: "Our lives were like that movie and people would see us and they'd freak out because it's like we walked off the sc...