The 1968 film adaptation of some of the stories of science-fiction author Arthur C. Clarke as won the Academy Award for Visual Effects and offered thematic complexity not typically associated with the science-fiction genre at the time. Its sequel, ' (inspired to Clarke's '), was commercially successful but less highly regarded by critics. Reflecting the times, two earlier science-fiction works by Ray Bradbury were adapted for cinema in the 1960s: "Fahrenheit 451" (1966) and "The Illustrated Man" (1969). Kurt Vonnegut's "Slaughterhouse-Five" was filmed in 1971 and "Breakfast of Champions" in 1998.