B-Team Sequel: Louis Leterrier who directed or co-directed the first two films (co-directed the first with Corey Yuennote Letterier is credited as artistic director with Yuen credited as director in the non-French release, while Yuen is credited as action director with Letterier credited as director in the French release before being the sole director of the second), wasn't involved in the third or fourth films. Justified for the third one as he was busy directing The Incredible Hulk at the time.
Channel Hop: After 20th Century Fox released the first two films internationally, the international rights would later be under Lionsgate for the third film and franchise owner EuropaCorp (which handles the French distribution rights) for the fourth film.
Development Hell: Refueled was set to start a new film trilogy but despite doing moderately well at the box office, critics weren't favourable towards it, thus the planned fifth and sixth instalments have been on hold as a result along with sexual assault accusations against franchise creator Luc Besson and the financial troubles at EuropaCorp that resulted from Valerian and the City of a Thousand Planets bombing.
Dyeing for Your Art: Matt Schulze lost a significant amount of weight to make Wall Street look more strung out.
Gay Panic: In the original conception of the movie, Frank was gay. The love scene with Shun Qi was added specifically to draw attention away from any potential remaining vestiges of that aspect in the script.
Sequel Gap: Refueled came out seven years after the third film.
