Trivia: In the final scene, Augustus Gibbons' glasses have one lens darkened - a nod to actor Samuel L. Jackson's role as the one-eyed Nick Fury in the Marvel Cinematic Universe.
Trivia: Though Vin Diesel chose not to take part in the prior sequel "xXx: State of the Union", he expressed interest in 2006 in returning to the series. The project was stuck in development hell for nearly a full decade, but filming eventually commenced in 2016. The film was eventually released 15 years after the original and 12 years after the prior sequel.
Trivia: This film marks the second occasion where Vin Diesel starred in an action film, opted out of the first sequel, and then returned in the third film. The first was the "Fast and the Furious" franchise - Diesel starred in the original, didn't appear in the second film, and then returned to the series with a surprise cameo in the third film and appearing in every subsequent sequel thereafter. Diesel has stated that should a fourth "xXx" be made, he will be back.