In de Billings Gazett kunnen we lezen dat de beroemde paleontologist Jack Horner samenwerkt met Steven Spielberg voor de film Jurassic Park IV.

[eng]Horner worked closely with director Steven Spielberg as a technical adviser on the "Jurassic Park" movies. He told the youths, much to their delight, hat he is working with Spielberg on "Jurassic Park IV". He was tight-lipped about the plot but offered up one tidbit of information: "If you like velociraptors, you will love Jurassic Park Four," Horner said to his exuberant audience.[/eng]

Jack moet onder andere goede kandidaten vinden om de Velociraptors uit de eerste film te kunnen opvolgen.