We Not Naughty

The film examines the problems faced by parents with their rebellious children in Singapore's current society.[6] Other themes in the film include cyberbullying, peer pressure, gangsterism, morality and teacher-student relationships. A prominent theme relevant to Singaporean society is the social stigma about ITE students and favouritism towards students who excel academically.

• Shawn Lee as Chen Weijie[7]
• Joshua Ang as Liu Jianren[7]
• Xiang Yun as Mrs Chen, Weijie's mother
• Jacky Chin as Mr Chen, Weijie's father
• Ivan Lo Kai Jun as Ah Bao, Weijie's younger brother
• Cheryl Yeo as Nicole, Weijie's younger sister
• Amos Yee as Amos, Jianren's younger brother
• Yan Li Ming as Cynthia Pua, Jianren's mother
• Daniel Chan as Mr Liu CK
• Cherry Hsia as Mrs Liu
• Roy Li as Ah Long
• Eric Moo as Boss Ma
• Ashley Leong as Alvin, ITP student
• Natalli Ong as Natalie, ITP student
• Tony Koh Beng Hoe as Ah Long 2

In addition, Lim Jiow Yong and Chia Kin Seng (ITE lecturers) are featured.

Chen Weijie and Liu Jianren are two ITP (International Technical Polytechnic, ostensibly a reference to the Institute of Technical Education) students who are constantly put down for being "dumb" despite the fact that they display a talent for designing and creating gadgets. Jianren comes from a wealthy single-parent home and is estranged from his mother and younger brother Amos, a fluent English speaker. He joins the gang of a local loanshark and becomes a runner. Weijie's father is a compulsive gambler who frequently swings from loving husband and father to crazed gambler running from loansharks. To complicate matters, his younger sister Nicole is academically gifted and pampered by their mother, thus causing frequent quarrels and misunderstanding amongst them. Unknown to the rest of them, Nicole becomes involved in a serious cyberbullying case and later becomes a victim of bullying herself.

One day Mr CK is announced as Weijie and Jianren's new class teacher. The young and energetic Mr CK tries hard to connect with the group but they fail to respond. He challenges them to a bet in a radio-controlled helicopter race and if he loses, he will do a run of ITP in the nude. The students defeat him and he honours his promise. The story and the controversy it caused made the national news. However, he had earned his students' respect and they responded accordingly when interviewed by the press. As a result, the board decide against dismissing him.

Unfortunately, one of Weijie and Jianren's "inventions" falls into criminal hands. This made Weijie, Jianren, Mr CK, his wife and Jianren's mum to travel to Johor Bahru, where Weijie and Jianren are tasked to use the invention to carry S$1000000 (which are actually drugs) by a few of their former gang members. The invention was close to crossing the Singapore-Malaysia border when Mr CK took control. Soon the gang members fought with Weijie, Jianren, Mr CK and Jianren's mum. Jianren's mum asked both Weijie and Jianren to escape while she suffers from an injury. Weijie and Jianren encounters Mr CK's wife, who is about to give birth. While the two are trying to help her give birth, they realised on what they have done wrong towards their parents. Soon after Mr CK's wife gave birth to a healthy baby, Weijie and Jianren are asked to help the police out using their invention to capture the criminals. Once the criminals are captured, Mr CK, his wife and Jianren's mum are admitted to the hospital while Weijie and Jianren thanked her for saving their lives.

Once again, Mr CK had hit the headlines and is proclaimed as a national hero. It was then revealed that Weijie and Jianren became winners of a national science competition.

• We Not Naughty at IMDb