“- Chuck Clarke: I feel so small when I look at the stars. How big is Venus?
- Lyle Rogers: How big is Mars?
- Chuck Clarke: I feel so small when I look at the sky. How big is Heaven?
- Lyle Rogers: How big am I?”
Dustin Hoffman - Chuck Clarke
Warren Beatty - Lyle Rogers

“My mom reckons I'm going to be a star. And stars don't fall from the sky.”
Lou Diamond Phillips - Ritchie Valens

“All astronomers are amateurs. When it comes to the heavens, there's only one professional.”
Claude Rains - Sir John Talbot

“- Jack: There's only two times when that kind of thing's okay: in prison where it's a substitute and guys in space.
- Mike: Guys in space?
- Jack: Well, not on purpose. They just float into each other.”

Shawn Hatosy - Jack
Zak Orth - Mike

“I am very pleased with the results of the astronomy test. Although, there's still some confusion about Pluto. While its planetary classification is still uncertain, it is definitely not Mickey's dog.”
Grace Phillips - Miss Landers