Fabrizio del Wrongo writes:
The French poster utilizes the art from the Italian poster, by the great Carlantonio Longi.
This Argentine poster features the same basic design, though it’s been reinterpreted somewhat. The acid-y coloration is typical of Argentine movie posters of the period.
Compared to the other two, this U.S. effort is pretty weak, though it might do a better job of expressing the tone of the movie. Note that it uses Longi’s image of Lea Massari standing on the rocks, though it’s been relegated to the margin.
“L’avventura” was recently released on Blu-ray by Criterion. I think it’s fair to say that the transfer, which derives from a 4k scan of original elements, is among the most beautiful ever to make its way to home video.