Why is impossible to write in french ? Very Kitch! This journey in the center of the earth is despicable technical possibilities nevertheless current in 1976. These big "Casimir" of monsters is completely ridiculous! The film deserve however a "remake", as was "KING KONG" (the last one), with a little more supplied scenario. The professor has resemblances with the Professor Calculus and is rather funny. David (the character) is enough inconsistent but cross(spend) to the people from below a good message " you unite and will overcome you! " Altogether we would say a film made in the 40s. Now that I said everything (or almost) the evil of which i thought of it, we can say that if we have the brain get tired or anything has to see of the other one, then the thing(matter) is even rather entertaining. Hugh! Such is my opinion! (translating French to English with "Reverso" : sorry for possible mistakes !)