The official blog for the Girls und Panzer anime franchise announced on Monday that the Girls und Panzer film has sold 1,144,720 tickets for a total of 1,912,179,484 yen (about US$17.23 million) as of April 24.
The film will then begin ULTIRA screenings with higher video and sound quality in May.
The film began screening in 4DX starting on February 20, and those screenings will end this weekend.
The film opened in Japan last November, and it ranked #38 in the top 39 highest grossing Japanese domestic films of 2015 (tied with Grasshopper).