Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : The Humpty Dumpty Circus is an animated short film made in 1898 by director and producer J. Stuart Blackton and Albert E. Smith, the Anglo-American founders of Vitagraph Studios.
Answer : Vitagraph Studios
A:
What production company was involved in The Humpty Dumpty Circus?