Some of the most celebrated, pulse-racing survival thrillers ever have debuted in the 21st century. From Alfonso Cuarón's nail-biting outer-space disaster Gravityand Leonardo DiCaprio's long-overdue Best Actor Oscar win in The Revenant, to Netflix's multinational drama Society of the Snow and Danny Boyle's terrifying 127 Hours, the nerves of viewers have truly been tested this century. However, due to these big-name survival thrillers dominating the genre's discourse, some others have fallen under the radar.