ZE:A Siwan's movie 'A Melody to Remember' (Korean title: Thinking of Oppa) had the biggest opening day on its premiere date!

According to the Korean Film Council's rating agency on January 21, 'A Melody to Remember' took 22.9% of all ticket sales that day, scoring first place in the box office.

Second and third place were Hollywood movies, 'The Revenant' and 'The Good Dinosaur'.

'A Melody to Remember' is about a lieutenant during the Korean War, who meets children from a choir who have lost everything. He does what he can to protect them. The film also stars Go Ah Sung.

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The movie just premiered on January 21.