The Main Shark's name is never uttered in the movie, but it's Caitlyn.
Shot in 21 days between May and June 2017.
The two sharks on the "Best Chums!" T-shirt Matthew and Jason wear at the end of the movie have been drawn by Matthew Ellsworth.
The car used by Josh (Josh Sterling) is actually Matteo Molinari's car. The car used by Matthew (Matthew Ellsworth) is his actual car.
The script went through three incarnations - three completely different adventures - before the writers settled on the version they shot.