This classic Tintin comic story around an underwater city in a lake appeared first as a movie and a year later as a comic book. While the movie poster displayed various images from the movie in a rather playful manner, the first French language book edition had a much more dramatic cover, clearly shifting the focus of the story towards disaster narrative.
The movie poster from 1972:
The cover of the Belgian comic book from 1973:
At least two other covers appeared for different editions of the story:
See also my other post about the story here.