Hi Jean-Claude,

Thank you for contacting Mearto with your appraisal inquiry.

A version of this poster was re-issued in 2005 to correspond with the re-release of the film; this appears to be that later version. If there's wording along the bottom (possibly obscured by the frame) to indicate when this poster was published, that would confirm the date. If it were from 1955 when the poster and movie were originally released, it would be considerably more value - a few hundred dollars at least.