who is starring in venezuela movies produced by carlos hugo christensen ?
select distinct var_uri where brack_open var_film rdf_type dbo_Film sep_dot var_film dbo_country dbr_Venezuela sep_dot var_film dbo_producer dbr_Carlos_Hugo_Christensen sep_dot var_film dbo_starring var_uri sep_dot var_uri rdf_type dbo_Person sep_dot brack_close