Julie & Julia is a 2009 American biographical comedy drama film written and directed by Nora Ephron starring Meryl Streep and Amy Adams in the title roles with Stanley Tucci, Chris Messina, and Linda Emond in supporting roles. The film contrasts the life of chef Julia Child (played by Streep) in the early years of her culinary career with the life of young New Yorker Julie Powell (played by Adams), who aspires to cook all 524 recipes in Child's cookbook in 365 days, a challenge she described on her popular blog, which made her a published author.

Ephron's screenplay is based on two books: My Life in France, Child's autobiography written with Alex Prud'homme, and a memoir by Powell, Julie & Julia: 365 Days, 524 Recipes, 1 Tiny Apartment Kitchen (later retitled Julie & Julia: My Year of Cooking Dangerously). Both of these books were written and published between 2004 and 2006. Powell's book was based on her blog The Julie/Julia Project, where she documented online her daily experiences cooking each of the 524 recipes in Child's 1961 cookbook Mastering the Art of French Cooking. The film is the first major motion picture based on a blog.

In March 2008, Ephron began filming with Streep as Child and Adams as Powell. On July 30, 2009, the film officially premiered at the Ziegfeld Theatre in New York; and, on August 7, 2009, it opened throughout North America. It received positive reviews from critics, who praised Streep's performance.

Julie & Julia was Ephron's last film before her death in 2012.