The given name of the male author is Elliot as seen on his book covers shown throughout the movie. It is listed as Elliott in the end credits.
Jen Lilley's and Joanna Douglas' hair changes in the middle of scenes. In one scene, Joanna's hair is in a ballerina bun on top of her head and two seconds later the bun is further down the back of her head. As they start on the road trip, Jen's bangs are pinned back, then not, then pinned back again.