War of the Worlds was written by H.G. Wells, not Orson Welles. Orson did, however, do that famous radio performance of War of the Worlds in the 30s that ostensibly (but probably not actually according to more modern analysis) caused widespread panic among its listeners.

I always get these two and George Orwell confused. The fact that Orson Welles/H.G. Wells both have that War of the Worlds connection and H.G. Wells/George Orwell both being famous authors doesn’t help, either.