The Closer (and its successor Major Crimes) are well known for use of product placement but this one was so subtle it was almost subliminal. When Chief Johnson and Commander Taylor are outside the new police headquarters there is a bus visible in the background with an advertisement for the new Angelina Jolie movie Salt (2010). Then later when Cherie Walker gets confused about whether her safe word is cinnamon or synonym, out of all of the words in the English language, Johnson chooses "salt". The movie was released two weeks after this was originally broadcast.
Cherie Walker is played by actress Natasha Gregson. She is the daughter of film star Natalie Wood and British producer/writer/agent Richard Gregson.