[6] In 2017, Champion booked a screen test to join the cast of James Cameron's science fiction film Avatar: The Way of Water.
[15][16][17] In 2023, Champion appeared alongside an ensemble cast in the slasher film Scream VI, playing the part of Ethan Landry.
[18] In contrast to his experience of working on Avatar, he described filming Scream VI as a "really fun summer vacation".
[5] He then played the son of star Liam Neeson's character in the action thriller Retribution, a remake of the 2015 Spanish film of the same name.
[20] In addition to the Avatar sequels, Champion will next star in the family drama Everything's Going to Be Great and in the action thriller Trap House.