At first, Wau Animation planned to make Ejen Ali as a feature-film project, but because of difficulties securing investment and after discussing with many parties and some feedbacks, they felt that it is a loss if they only produce a single movie as the concept is so wide. They planned to develop this series at least until 5 seasons, then the films will follow.
Logo of Tenaga Nasional Berhad (TNB) can be seen during the chase scene as one of the road sign.
Mama (Di Hatimu) performed by Ida Rahayu Yusoff, who, interestingly, voiced Ejen Ali and Comot. Ejen Aliya, Ali's mother, was voiced by Salina Salmee Mohd Ali.
In the movie, Ali meet General Rama for the first time. In the series, he only saw him through screen monitor or hologram.
Joe Flizzow who previously performed and written "Sang Saka Biru" in Polis Evo 2 (2018) were actually featured in special thanks credits as Johan Ishak, coincidentally performed together with Altimet who was an actor in this film.