Shari Springer Berman and Robert Pulcini wrote the screenplay with Scarlett Johansson in mind for the character of Annie Braddock.
The song "Chim, Chim, Cher-ee," from the movie Mary Poppins (1964), can be heard playing in the background while Annie contemplates becoming a nanny. Later, this tune becomes the ringtone for Annie's cell phone.
Scarlett Johansson, Chris Evans and Donna Murphy are all alumni of the Lee Strasberg Theatre and Film Institute.
This would be the second collaboration between Chris Evans and Scarlett Johansson after The Perfect Score (2004).
Chris Evans and Scarlett Johansson would both go on to be Marvel superheroes (Captain America and Black Widow).