During the director's audio commentary, 皮特·奥法伦 and Wayne Allan Rice recall the creation of the son for the flashback scene in Max's mustan with Elise, which was "? written for the movie, due to budet constraints". They refer to the band as "? a uy named Frankie Blue, and no you can't buy the record because they decided not to do a record deal". The song is actually "Shattered" by Remy Zero, who have been together for 14 years and have released multiple albums.
The song featured during the scene where Max and Elise and fooling around in the car pre-kidnapping, and that plays as they attempt to make their escape, is called "Shattered" by Birmingham, Al based band Remy Zero.
In the car scene where Elise is kidnapped Max is struck and falls on the concrete in the rain with his shirt pulled up exposing his smooth stomach. In the end scene on the boat you can clearly see Max has a hairy chest and stomach.