Joel Courtney plays the main character Joe, who is phenomenal in this film. He has a lot of dramatic scenes all of which land. I think in some way, he is even better than Elle Fanning. Riley Griffiths as Charles Kaznyk is so good as a young director of a movie within the movie. Especially when he starts yelling swearwords at other kids. And I guess one of my favorite is Ryan Lee as Cary. A kid who likes to blow shit up and light everything on fire. And you might think that the movie has to teach him a lessor, right? No... His obsession with explosions actually comes as an aid to save the characters in a dangerous situation. I fucking love this movie. Oh and I should probably mention Gabriel Basso who plays the lead of the movie within the movie.