The Montreal Convention (MC) is now twenty-five. This article summarizes its purpose, passage and what it added to its predecessor, the Warsaw Convention (WC), and its progeny. It considers some of the case law it has produced and issues that arise in its application. It concludes that the MC remains a praiseworthy international instrument for the regulation of air carrier liability, but suggestions are made as to possible further revisions, enhancements and expansion of its scope.