10 Most Challenging Thrillers of the 21st Century, Ranked

One of the inherent strengths of filmmaking as a medium is its ability to directly challenge audiences and push them beyond their comfort zones, with no singular genre being as impactful with such an approach as thrillers. There are many different ways that a thriller can be considered challenging, whether it be through an exploration of deeply uncomfortable and painful subject matter or a non-traditional approach to storytelling at its core. No matter what method is chosen, the tenets and conventions of the thriller genre lend themselves perfectly to this type of challenging filmmaking.