Kristen Bell was in a movie.
Forgetting Sarah Marshall is a 2008 American romantic comedy-drama film directed by Nicholas Stoller and starring Jason Segel , Kristen Bell , Mila Kunis and Russell Brand . Kristen Bell . During her time on Veronica Mars , Bell appeared as Mary Lane in the film Reefer Madness : The Movie Musical ( 2005 ) , a reprise of the role she had played in the New York musical upon which the film was based . She has since appeared in a number of comedy films , such as Couples Retreat ( 2009 ) , When in Rome ( 2010 ) , You Again ( 2010 ) , and The Boss ( 2016 ) . Bell garnered further recognition for voicing Princess Anna in the Disney film Frozen ( 2013 ) , the short film Frozen Fever ( 2015 ) , and the upcoming Frozen 2 .