Ly Hai is always considered a "strange" in the Vietnamese filmmaking world. Ly Hai once pursued a singing career, had many famous hits, and then switched to acting. The series of films "Flip Side" is associated with Ly Hai's personal brand.
In each part of Flip Side, Ly Hai brought a different dish, there were parts where he pursued the horror and thrilling genre such as Flip Side 4: House with Guests, some were action and martial arts films such as Flip Side 5: 48h, to Flip Side 6: The ticket to fate which are stories about friendship and betrayal... Most of the Flip Side films won big in revenue.
"Flip face" has been launched by Ly Hai since 2015 to now 8 films. In the films "Flip face" - Ly Hai's own brand, there are many parts that have reached a hundred billion revenue, such as "Flip 4" collected 120 billion dong, "Flip face 5" achieved the revenue of 150 billion dong ... and came to "Flip face 7: A wish" in the theater of the holiday 30.4-1.5 in 2024, Ly Hai has reached the revenue of 482 billion dong with 13 weeks of the movie, the film was the longest movie in the ticket office. The highest revenue of all time of Vietnamese films) 11 weeks outside the theater.

Experts have divided the Vietnamese film market into Tran Thanh, Ly Hai and the rest. If Tran Thanh " makes a splash" in theaters during the Tet season, Ly Hai dominates the series of holidays from April 30 to May 1.
This year, Ly Hai met a "more formidable" opponent, director Victor Vu, with the release of "Detective Kien: Ky an khong dau". Both released in theaters, but in the early days, Flip Side 8 dominated the screening space. Despite being criticized for the old theme and old approach, Flip Side 8: Sun Hands is still showing Ly Hais outstanding advantage.
As of the night of May 1, "Flip Side 8" has reached the 100 billion VND revenue mark, while "Detective Kien" is chasing and achieving a revenue of 85 billion VND.
The two films are expected to soon have new revenue figures, exceeding over 100 billion VND - continuing the consecutive success of Vietnamese films this year at the box office.