Adams is adorable and Streep lives up to her rep as one of our finest actresses - she has Julia's quirky speech mannerisms down! Kudos also to Tucci and Messina as the often bemused husbands in the parallel story lines.
A weakness of the film, if anything, is the parallel story lines. Each arcs differently toward the end, leaving the viewer missing something just out of reach. This may have been Ephron's intent -a European film ending, perhaps? Also the inclusion of Aykroyd's famous parody on SNL, may have added a jangling note at the wrong moment...
Nevertheless, delightful film! Dark moments never darken bright moments - perhaps that's the lesson of passionate obsession that underlies much of this film. So go and enjoy, Bon Appetit!