The "Slo-Mo Duck" illusion (present in the international version only) has been already performed in The Magic of David Copperfield VI: Floating Over the Grand Canyon (1984).
The "Moon Rise" (aka "Moon Interactive") illusion (present in the international version only) has been already performed in The Magic of David Copperfield XII: The Niagara Falls Challenge (1990), but named "Cardiographic" (aka "Card From Paper").
The "Laser" and "Uncle Morty & Aunt Ida" illusions make a really wide use of the original motion pictures score composed and conducted by James Horner for Rocketeer (1991).
"The Disappearance" (aka "Portal") illusion makes a really wide use of the original motion pictures score composed and conducted by Randy Edelman for Cœur de dragon (1996).
The initial speech made by David Copperfield about the tornado stunt, the introduction of the pre-recorded segment of the special and the Copperfield speech about the perfect place make a really wide use of the original motion pictures score composed and conducted by Mark Mancina for Tarzan (1999).