
The classic graphic novel. Professor Calculus is building a rocket, but Tintin quickly realizes that there are spies around every corner trying to steal the professor's design! When Professor Calculus' rocket finally takes off for the moon, Tintin and his dog Snowy are on board.
The Roy Krock movie worked because audiences understand McDonalds. Trying to explain the relationship between R&D policy and defense spending is much tougher. Although see Heinlein's "Destination Moon".
Speaking of walls of text, remember the explanation of the inner workings of an atomic reactor in Destination Moon? That's how 5 y.o. me discovered nuclear physics :]