Elaine Hall Katz and director Randal Kleiser would plan the twins' scenes a week in advance. Tom Smith reported that, "On his own, Dan was almost too adventuresome to repeat one move, and Josh seemed very cautious. Put them together and they could do anything." However, the film did have difficulties in working with such small children, and one crew member later remarked it was "like playing hopscotch on hot coals". At the time, the twins were scheduled to appear in two more Honey films. They did appear once, but were recast in Honey, We Shrunk Ourselves. In the film, Nick has a crush on a girl named Mandy Park, played by Keri Russell in her first feature film. John Shea portrays Dr. Charles Hendrickson, who is scheming to get Wayne's control of the project, while Lloyd Bridges portrays Clifford Sterling, the owner of Sterling Labs. Fred Rogers and Richard Simmons are also seen in videos in TV scenes in the film. Production Randal Kleiser, of Grease and White Fang fame, was chosen to direct the film, replacing Joe Johnston. He would return to film with the cast in the 3D show Honey, I Shrunk the Audience, which was presented at several Disney parks until 2010. Like the first film, and Grease, it had animated opening credits. Production began on June 17, 1991. Filming took place in Simi Valley, California, for the parts involving the Szalinskis' house. Filming locations in Las Vegas included the Hard Rock Hotel and Casino, the Mirage hotel-casino, and Fremont Street. Scenes involving a water park, where Nick worked and where Mandy is first introduced, were filmed at Wet 'n Wild in Las Vegas. While post-production special effects were used heavily throughout the film, some effects were practical (shot on-set). When Adam knocks down his bedroom door, production designer Leslie Dilley created a set with miniature furniture about four feet away from the camera, while the adult actors would be about fifteen feet away. Kleiser recalled, "Danny was generally better at improvising and fresh reactions. Josh was better at following directions, so we would alternate." Lawsuit before release Disney would later find itself the subject of a lawsuit as a result of the film. The suit was filed in 1991 by Mark Goodson Productions director Paul Alter, who claimed to have come up with the idea of an oversized toddler after babysitting his granddaughter and watching