Kabral: The black guy always dies. Think about it, man. Unforgiven. Alien. Rocky IV. The Shining.
Roy: Star Trek II. Forrest Gump. Witness.
Bud: Annie Hall. Not Annie Hall.
Roy: No, Night of the Living Dead.
Bud: That's the one!
Kabral: And what about that brother in Jurassic Park, man?
Bud: There were two black guys who died in that one. That was a twofer. You must be really pissed off at that one.
Soon after Dan Ackroyd makes John Candy translate all the phrases spray-painted on the van into French, you can see them driving on the road and all the spray-paint has gone. Then later in the film it reappears and stays for the rest of the film.