In the Line of Duty - Watch Order: Essential Films
This watch list focuses on the four essential films that represent the creative and commercial peak of the In the Line of Duty franchise. Michelle Yeoh headlines the first two entries before Cynthia Khan takes over as the series' leading lady.
These films showcase Hong Kong action cinema's choreography and stunt work, featuring memorable action sequences and decent production values. While the series continued with three more official entries, these four films capture the essence of what made the franchise a landmark in the girls with guns subgenre.

Yes, Madam!
Two unlucky thieves break into a just murdered man's hotel room and steal his passport with a hidden microfilm wanted by a triad boss. Two ass-kicking women cops—one Chinese, one British—are on the case.

Royal Warriors
When a tough policewoman learns about a group of violent terrorists, she, along with her partner and a Japanese detective, does everything it takes to take them down.

In the Line of Duty 3
Genji Nakamura and his partner Michiko Nishiwaki are thieves for the notorious Red Army terrorist organization in Japan. After pulling off the jewelry heist of the century in which dozens of people get killed, they are now planning to use the jewelry they've snatched to buy an arms cache.

In the Line of Duty 4
Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.
Other Film Series
Armor of God
Jackie Chan's globe-trotting adventure trilogy following treasure hunter Asian Hawk on international quests for ancient artifacts.
Batman
The complete Batman film saga spanning multiple interpretations from Burton's gothic vision through Nolan's grounded trilogy to modern detective noir.
Kingsman
A stylish spy action franchise blending high-octane espionage with humor and British charm, following the secret Kingsman organization from its WWI origins to modern-day adventures.
Smokey and the Bandit
A classic action-comedy trilogy following the legendary Bandit and his high-speed adventures while being relentlessly pursued by Sheriff Buford T. Justice.
Taxi
French action-comedy franchise about a taxi driver and a clumsy cop fighting crime in Marseille, plus an unconnected American remake set in New York.
xXx
An action franchise about extreme sports athlete Xander Cage who becomes an unconventional government agent for high-stakes espionage missions.