Krysten Ritter is not an actress.
27 Dresses is a 2008 comedy film directed by Anne Fletcher and written by Aline Brosh McKenna . Big Eyes is a 2014 American biographical film directed by Tim Burton , written by Scott Alexander and Larry Karaszewski and starring Amy Adams and Christoph Waltz . Confessions of a Shopaholic is a 2009 American romantic comedy film based on the first two entries in the Shopaholic series of novels by Sophie Kinsella . Krysten Ritter . She has appeared in films such as What Happens in Vegas ( 2008 ) , 27 Dresses ( 2008 ) , Confessions of a Shopaholic ( 2009 ) , She 's Out of My League ( 2010 ) , Veronica Mars ( 2014 ) , and Big Eyes ( 2014 ) . Veronica Mars is an American teen noir mystery drama television series created by screenwriter Rob Thomas . What Happens in Vegas is a 2008 American comedy film directed by Tom Vaughan , written by Dana Fox and starring Cameron Diaz and Ashton Kutcher .