The Best Bet (Chinese: 突然发财; pinyin: Túrán Fācái; Pe̍h-ōe-jī: Tu̍t-jiân-hoat-châi) is a Singaporean comedy film written and directed by Jack Neo and distributed by MediaCorp Raintree Pictures.

Tan Chun Huang met with his bookie friends 4D King and 4D Liang on purchasing 4-Digits lottery while leaving his Bak kut teh stall to his younger sister Huimin, who overheard a conversation on proposing ideas to promote sales for 4D while sharing his thoughts as a bookie, and began displeasing him over his gambling habits, his negligence for making a proper Bak kut teh soup and his attitude.

While clearing his desk, their two co-workers, Coffee-Lady and Marcus, approaches them to asks to purchase Anita Mui's number, which exasperates Shun who tries to tell her about her addiction.

Later on, Huang's friend left $2 deciding not to keep pocket change to his hairdresser Susan and her assistants, but his wife who went to find him snatches it, concerning a possible affair.

Huang takes $300, reserved for the fees to help his son get an asthma specialist and for her mother to overcome liver cancer, despite his wife's protests, and enlists the assistance of Coffee-lady, who is revealed to also be a bookie working with Lee, and running a 12 sticks gambling system.

Whilst keeping his winnings in 4D as a secret and disguising as a taxi driver, he and his family enjoy a comfortable life and he begins to be infatuated with Susan, who gives him free hair styling at a salon.

Whilst driving home, Huang gets wind from a radio broadcast that a family was murdered due to the father's illicit 4D winnings and deceiving his friends, who is then revealed to be Fatty.

Upon release, Tan and Lee reveal that they will begin to kidnap people who purchase and win money if they won 4D under private betting.

In the end, all of it is revealed to be just a fantasy; Huang and his wife decide to evenly split the winnings, and make sure they have really won the prize money.

Radio DJ anchors Violet Tan of Love 97.2FM and Lin Lingzhi of YES 933 played a role as announcers for the respective 4D drawings, and Capital 95.8FM's Wang Di Cong and NewsRadio 938's (now called CNA938) Anisa Hassan (both uncredited) as reporters for the family murder news article.

As the release of the film coincided with an ongoing debate on whether to set up a casino in Singapore, Jack Neo commented that "we should warn people about the ills of gambling, because it is always a cycle.

"[2] When writing the script, Jack Neo decided to change his style, reducing the amount of comedy in the film, and adding more drama.

However, after negative feedback from focus groups and concerns from the Board of Film Censors that The Best Bet promoted illegal gambling and the speaking of dialects, he reversed his decision.

On the first day of filming, Jack Neo, Daniel Yun and the lead actors participated in a prayer ceremony at the hawker centre in Ang Mo Kio Avenue 10.

"[6] The Best Bet earned S$170,000 during its sneak preview,[2] and over S$2.5 million during its cinematic release,[4][7] breaking the record for the largest opening day gross for a local film in the process.