Riddler's Moon is a 1998 American science fiction drama television film created for UPN for the Thursday Night at the Movies block as part of the six-film Nightworld anthology. It was the second film in the anthology to air on the block. It was subsequently aired again in 1999, before being acquired by the Fox Family Channel in 2000, where it was frequently aired, until the network was purchased by Disney-ABC Television Group in October 2001.