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.

Thor panel from the 2010 San Deigo Comic-Con International with Chris Hemsworth, Natalie Portman, Kat Dennings and Tom Hiddleston.

Thor co-stars (photo left to right) Chris Hemsworth, Natalie Portman, Kat Dennings and Tom Hiddleston

Chris Hemsworth, Natalie Portman, Tom Hiddleston, Kat Dennings

Kenneth Branagh, Chris Hemsworth, Natalie Portman, Kat Dennings

Kenneth Branagh, Chris Hemsworth, Natalie Portman, Kat Dennings

Kat Dennings Signing at Thor Dark World Premiere

Kat Dennings Signing at Thor Dark World Premiere

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)