Nike/Laika
Nike actually *does* own a film production company called Laika. They're currently developing an animated adaptation of Neil Gaiman's "Coraline".

Billy Joel
I completely agree on the Billy Joel comparison for "Underdog" — specifically the horn part kind of cribs the chorus melody of "Say Goodbye to Hollywood".

Re: Mark Pancini
I'm pretty sure that Mark Pancini is supposed to be the name of the boxer character. He's the producer, and essentially the only one who even knows what the contest is about, as the confused interviews with the contestants shows. Also, he was holding the boom mic for one of the shots. His producing…

Glaring Omission
Are you really going to tell me that "What Dreams May Come" didn't make this list?