... which I was first exposed to via the Gorillaz/Del tha Funkee Homosapien collab "Rock the House."
In England, Dankworth is better known for his theme from Tomorrow's World--the show that was spoofed by Peter Serafinowicz's Look Around You--and his jazz albums. A Guardian obit gives a good overview of the career of Dankworth, whose death was announced by his singer wife Cleo Laine onstage at the end of an all-star jazz concert that took place only a few hours after he passed.
One of the greatest compliments a musician can receive is being frequently sampled. Dankworth has been the source of many excellent samples (and what I'm sure are hours of giggles from stoners because of his last name).
Dankworth's 1974 cover of his own theme from the 1965 thriller Return from the Ashes is pretty gangster.
The 1974 re-recording was sampled by Madlib a.k.a. Quasimoto for his 2002 joint "Astronaut" and DJ Premier for Cee-Lo's 2004 cut "Evening News."
UPDATE: Y Society's "Never Off (On & On)" is another track that sampled the '74 recording. (Good looking out, wutangfan85.)