Since motion picture theaters are being operated and athletic events, games, and contests are being held on Sundays in most of the principal towns and cities of the state, it is declared to be the policy of this state that a method should be provided whereby the citizens of any town or county may provide for the operation or prohibit the operation of motion picture theaters and for holding of athletic events, games, and contests or for prohibiting the same, on Sundays. Nothing in this article shall legalize horse or dog racing within the State of Georgia.