Kristen Bell's is an actress.
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 Anne Bell ( born July 18 , 1980 ) is an American actress and singer . In 2008 , she had her breakout film role as the title character in Forgetting Sarah Marshall . When in Rome (2010 film) . It stars Kristen Bell and Josh Duhamel .