The opening credits feature the track 'My Great Escape' by Marc Cohn. A prelude is also heard later in the movie. However, this track was not released on any medium other than the movie itself.
When Erik is sitting on the floor playing Nintendo and his mom is talking to him about his dad's girlfriend Cindy, the position of Erik's legs keep changing between shots.
At about 31 minutes in, Erik is seen gluing and smacking a leaf into their logbook, a reverse shot then shows three leaves with notes, another reverse shot and again one leaf.
Dexter: Suppose you kept going another 18 billion light years, what if there's nothing out there? Suppose you kept going another trillion times further, so far out you see nothing. The light from the universe would be fainter than the faintest star. Infinitely cold. Infinitely dark. Sometimes if I wake up and it's dark, I get really scared, like I'm out there and I'm never coming back.
Erik: One time there was this kid, and he went swimming after eating, and he got a stomach cramp and he started to drown, but the sturgeon general grabbed him by his shirt and put him on the shore.
The following answer may reveal important information involving the plot. Please read at your own discretion.After Dexter's death, Erik apologises to Dexter's mother for not being able to find a cure. She responds, "Come here sweetie. You did, you did. Everything that was sent in Dexter's life was sad, alone, and you made it go away. Dexter was happy to have you as a friend."
Q
Why does Erik throw the rock?
A
The screenwriter Robert Kuhn has stated that a part of the script that was deleted before filming began involved Erik always throwing rocks at things and missing. This is a leftover from that idea. The beginning of the scene shows Erik throwing a rock at a garbage can and missing. When he throws the rock at Tyler he isn't expecting to hit him. He looks shocked when he actually does.