The film heavily features the music of Melissa Manchester, as Clarke (Jeremy Dozier) is a big fan. The song "Rainbird" was actually co-written by Manchester and Mary Steenburgen, who plays Clarke's mother.
On the morning that Danielle and Clarke leave for California, Danielle wakes Clarke up and he asks her where she wants to eat breakfast then says he thinks "Sambo's" takes credit cards. Sambo's closed the last of its locations (excluding the original) in 1982, five years before the film was supposed to take place.
The acoustic cover of "Your Love" by The Outfield playing during Joel's strip tease for Clarke wasn't recorded until 1992, five years after the time the film depicts.
The movie is supposedly set in 1987, but the cash the lead character is shown stealing in the trailer ($10 and $5 bills) is clearly modern U.S. currency featuring enhanced security features like large numbers and different colored inks - not bills from the 1980s.
Danielle: [as "Joan"]
Dear Diary, New Mexico is brown and flat. Mom does most of the driving, because she thinks that Dad goes too slow. Daddy is happy, being a man and all, just navigating. He is a most excellent map reader. With the division of labor so neatly divided and both of them willing to stay in their designated roles, I'm convinced that I have the happiest family there ever was.