According to Lautner and Dooley, when filming the scene with the dream train, the front part of the train was an actual physical set piece."The whole inside was there and when they have all the gadgets you can pull on, that was all there but everything else was a green screen," said Dooley.Max is a lonely child in the suburbs of Austin who creates an imaginary dreamworld named Planet Drool, where all of his dreams come to life.He creates two characters; Sharkboy, who was raised by sharks after losing his father at sea, and Lavagirl, who can produce fire and lava, but has trouble touching objects without setting them alight. In reality, Max's parents have little time for him, and their marital relationship is not going well. However, he does receive friendship from Marissa, the daughter of his teacher Mr.Lavagirl also dies after jumping into the water to retrieve Sharkboy.Tobor appears and convinces Max to dream a better and unselfish dream, which in turn revives Sharkboy, who then races Lavagirl to a volcano to revive her.As seen in the credits, two of Robert Rodriguez's children, Rebel and Racer, portray Sharkboy at age five and age seven respectively. Marc Musso and Shane Graham play children at Max's school.Parts of the film were shot on location in Texas, where Max resides and goes to school in the film.
Miley Cyrus had auditioned for the film with Lautner, and said it came down to her and another girl who was also auditioning; however, Cyrus began production on Hannah Montana.ot Pictures, Tippett Studio, Amalgamated Pixels, Intelligent Creatures and Troublemaker Digital.The film received negative reviews from critics with much of the criticism directed at the decision to post-convert the film into 3-D which damaged the film's visual look, and earned .4 million on a million budget.Many of the concepts and much of the story were conceived by Rodriguez's children.The special effects were done by Hybride Technologies, Cafe FX, The Orphanage, Post Logic, Hydraulx, Industrial Light & Magic, R!