scripts for Amazon are not easy ...
maybe you should begin script writing with an easier, ie www.monsieurcinema.com
however, here are the queries :
#WEBQUERY#=http://www.amazon.fr/exec/obidos/search-handle-url/index=dvd-fr&field-keywords=#MOVIE#
#WEBQUERYID#=http://www.amazon.fr/exec/obidos/ASIN/#MOVIEUPDATEID#