Lust, Caution" is a famous film by director Ang Lee, which won the Golden Lion award at the 2007 Venice Film Festival.
Before choosing Tang Wei, Ly An considered Luu Diec Phi for the female lead role of Vuong Giai Chi and met many times to discuss the character.
However, Liu Yifei's mother said that she was only 19 years old that year, too young to take on a role with complex psychology and many sensitive scenes.
Director Ang Lee himself also assessed that the actress did not have enough inner depth for the character. On the other hand, there are many hot scenes in the film.
The decision to refuse to act in the movie "Lust & Beauty" is said to have helped Liu Yifei maintain the image of "fairy sister" for many years.

Liu Yifei was once loved by the public through the projects "Demi-Gods and Semi-Devils", "The Return of the Condor Heroes" through the image of a pure, secular "fairy sister". After that, she continued to make a splash through television dramas such as "Dream of Rose Garden", "Go to the Windy Place", "The Story of Rose".
By 2020, Liu Yifei surpassed 1,000 candidates to be selected for the role of Mulan - in the movie project "Mulan" with a production budget of up to hundreds of millions of USD. The actress has the opportunity to stand shoulder to shoulder with many big names such as Donnie Yen, Gong Li and Jet Li.
This is also the first time Liu Yifei has played the main role in a Hollywood blockbuster. To transform into Mulan, the actress had to go through a process of martial arts training and horse riding with high intensity, thereby building a strong action actress image on the international screen.
Her performance later helped the actress win the Best Action Actress award at the Critics' Choice Super Awards in 2021 and received a nomination for the 46th Saturn Awards.
For nearly 3 years now, Liu Yifei has been absent from the screen and has not received any new television or film projects.
Although temporarily stopping acting, she is still one of the most influential A-list stars, maintaining a "huge" income and high recognition through major brand representative contracts.