Usually, it is said that the popularity of the trailer is the most important attribute determining openings, besides the pull of the star cast. A superstar film with a superb trailer will take massive openings. A superstar film with a mediocre trailer will take less-than-expected openings, usually speaking. There are exceptions like 'Bheemla Nayak', whose first trailer was not good, but the film took very good openings because of the rarity of mass masala films in the age of pandemic ('RRR' and 'KGF 2' were not released at that time).
In the case of 'Acharya', something as important or even more important than the trailer would be the song 'Bhale Bhale Banjara'. Since it features Chiranjeevi and Ram Charan, it has to blow away our minds. If the song bowls over youths and mass audiences alike, the urge to watch 'Acharya' in the first weekend will go up exponentially among the general audience.
Going by the promo, which was released on Sunday, the song is not a swashbuckler. One hopes the full song, which comes out on Monday evening, will be a killer!