Hunter x Hunter Movie 1: Phantom Rouge

Kurapika became a Hunter to take vengeance on the Class-A crime group Phantom Troupe who massacred his clan for their unique eyes. The eyes of the Kurta clan turn scarlet in times of anger or emotional agitation and are considered the most beautiful treasures in the world. Kurapika continues to pursue the Phantom Troupe but an unknown party has stolen his "scarlet eyes". With the help of Gon, Killua and Leorio, Kurapika' s life was saved. However, the Phantom Troupe shows up before them and blocks their way. The true identity of the one with the No.4 spider tattoo is about to be unveiled. 
(Source: Hunterpedia)

Hunter x Hunter (2011)

Hunter x Hunter is set in a world where Hunters exist to perform all manner of dangerous tasks like capturing criminals and bravely searching for lost treasures in uncharted territories. Twelve-year-old Gon Freecss is determined to become the best Hunter possible in hopes of finding his father, who was a Hunter himself and had long ago abandoned his young son. However, Gon soon realizes the path to achieving his goals is far more challenging than he could have ever imagined.

Along the way to becoming an official Hunter, Gon befriends the lively doctor-in-training Leorio, vengeful Kurapika, and rebellious ex-assassin Killua. To attain their own goals and desires, together the four of them take the Hunter Exam, notorious for its low success rate and high probability of death. Throughout their journey, Gon and his friends embark on an adventure that puts them through many hardships and struggles. They will meet a plethora of monsters, creatures, and characters—all while learning what being a Hunter truly means.

(Source: MAL Rewrite)

Hunter x Hunter: Kurapika Tsuioku-hen

A 2-chapter one-shot about Kurapika's past released as a prequel to the movie.

Hunter x Hunter Movie 1: Phantom Rouge Franchise