Mary Lynn Rajskub (24) is joining Amy Adams and Meryl Streep in Columbia Pictures' Julie and Julia. The film is the true story of Julie Powell (Adams), who spent a year cooking all 524 recipes in Julia Child's classic cookbook, "Mastering the Art of French Cuisine," and blogging about her trials and tribulations.

According to The Hollywood Reporter, Rajskub plays Powell's best friend, Helen. The film also covers Child's life in France in the 1940s and 1950s, based on her biography. Streep plays Child, and her The Devil Wears Prada co-star Stanley Tucci plays her husband, Paul.

The film is currently filming in New York.