The publishers at Houghton Mifflin show Julia Child a cookbook entitled 'Real Home Cooking' by an author named Della Simmons. Both the book and author are strictly fictional as there was no such book by an author with that name. On the DVD commentary track, Nora Ephron says that the book that the publishers actually gave to the real Child and Beck was "Helen Corbitt's Cookbook," a 1957 bestseller by the Director of Food Services for the Neiman-Marcus Department Stores.
In the scene when Julia Child is speaking to her French teacher in the library, she is using the word "salesperson". But this is a "gender-neutral" neologism created in the late 20th century. In 1950, an American would have used the word "saleslady" for "vendeuse".
When Julia Child (Meryl Streep) is checking out the new bed, we see her kick off her shoes and lie down; the shoes in that scene are clearly not the ones she had on when she got out of the car upon their arrival, but the specially made lifts that Streep had to wear in order to appear taller. You'll notice that in many scenes the view of her legs/feet are obscured to hide the lifts, but not in this scene.
In real life, Meryl is only 5'6'' (1.67 m), while the real Julia Child was actually 6'2'' (1.88 m). Camera angles, adjusted sets, and high heeled shoes were used to force perspective and make Streep appear as if she was Julia Child's height.
When does this take place?
Julie Powell (Amy Adams)'s story takes place in 2002-2003. Julia Child (Meryl Streep)'s story takes place in the late 40's as she first moves to France with her new husband, Paul Child (Stanley Tucci), and decides to start taking cooking classes at Le Cordon Bleu school in Paris. Julie and Julia's scenes are always separate, they never meet and their stories are never in the same time period.
What is the song featured in the trailer?
The song is called, "It's Amazing" by Jem. The other song is called "Merry Happy" by Kate Nash.