 The music was scored by Carl Stalling and the backgrounds painted by Peter Alvarado, with layouts by Robert Gribbroek.In retrospect, Chuck Jones considered this one of his animated shorts which managed to "turn the corner" towards strange, new, and enchanting directions.In this case, because it was the first in the series to be set in outer space, the first appearance of Marvin the Martian, and the first appearance of his Illudium Q-36 Explosive Space Modulator.