Critical response On
review aggregator Rotten Tomatoes, the film has an approval rating of based on reviews and an average rating of .
Metacritic assigned the film a score of 58 out of 100 based on 5 critics, indicating "mixed or average reviews". Richard Kuipers of
Variety gave a positive review and wrote, "
Believer may be more impressive around the edges than at its core, but that doesn't prevent it from delivering a pretty solid two hours of action and suspense that's muscularly directed by Lee and stylishly shot by Kim Tae-kyung. Punching the narrative along is a terrific, predominantly electronic, score by ace composer Dalpalan. All other technical work is spot on." Cary Darling of the
Houston Chronicle rated the film 3.5 out of 5 and said, "Lee Hae-yeong's gripping retelling of Johnnie To's
Drug War...stands on its own and is different enough from the original to make it less a clone and more of a genuflection." Simon Abrams of
RogerEbert.com rated the film 2 out of 4 and said, "
Believer doesn't add up to much because Lee and Chung essentially tried to improve something that was already perfectly unsettling."
Box office According to the
Korean Film Council Believer surpassed one million moviegoers in five days, becoming the fastest Korean movie to accomplish this milestone in 2018. A total of 1,004,563 people had seen the movie as of 26 May. The film had attracted 3,001,539 moviegoers by June 2, and became the fastest Korean film to surpass three million moviegoers in twelve days this year. During the second weekend at the box office the film held 63.4% of the weekend sales by selling 981,000 tickets at 1,531 screens.
Believer became the first Korean film to surpass five million admissions in 2018. The film was seen by a total of 5,063,620 people by September 29, 2018, way exceeding its break-even point of 2.8 million admissions. ==Sequel==