Kat Dennings at The 40-Year-Old-Virgin's 20th anniversary Q&A in Los Angeles, California.

Kat Dennings at the 2010 San Diego Comic-Con International.

Kenneth Branagh, Chris Hemsworth, Natalie Portman, Kat Dennings

Kat Dennings and Beth Behrs on the red carpet at the 38th People's Choice Awards on January 11, 2012, at the Nokia Theatre in Los Angeles, California. (JJ Duncan/ Zimbio.com)

Kenneth Branagh, Chris Hemsworth, Natalie Portman, Kat Dennings

Kat Dennings Signing at Thor Dark World Premiere

Thor panel from the 2010 San Diego Comic-Con International with Natalie Portman and Kat Dennings.

Actress Kat Dennings at the world premiere for Thor: The Dark World at Odeon Leicester Square in London on October 22, 2013.

Kat Dennings Signing at Thor Dark World Premiere

Kat Dennings at 2010 San Diego Comic-Con