Trivia: In the scene with George swinging from the Bay Bridge in San Francisco, that's actually Brendan Fraser, not a stuntman. He enjoyed the rush so much that he requested an extra take just to swing again.
Trivia: Brendan Fraser auditioned for the role, but wasn't going to get it. However, he'd brought his dog along to the audition and it was behind the sofa. When it started barking at the end of the audition, Brendan leaped over the sofa and started barking back at it on his hands and knees. They offered him the part immediately.
Trivia: The tree house and the immediate area around it were all created on a big set for the movie.
Answer: They never mention what ultimately happens to his parents. However it's mentioned they "searched high and low" for George and never found him. The animation even shows all the passengers calling out for George, to suggest they also aided in the search.
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