While Bluth had originally wanted to portray a more "forceful, dramatic" representation of prehistoric times, the idea was sometimes at odds with studio executives who wanted a more child-friendly "get-along gang" approach, which called for the main characters becoming cuter, but still distinctly detailed, as a compromise. After the release of the first film, neither Bluth, Spielberg, nor Lucas had further creative input in the series, with character development and design tweaks now guided by Universal Pictures Home Entertainment and associated studios.