Julie Walters says she was nervous about her latest film 'Brooklyn', because she thought it couldn't compete with the novel it's based on.

The actress stars alongside Jim Broadbent and Saoirse Ronan in a movie about a young Irish girl who moves from a small town to New York in the 1950s.

The book's by Colm Tóibín - the screenplay's by Nick Hornby.

Julie says she was nervous about the film, because the novel was so good.