The actor shared her thoughts on how she thinks the film will perform while on a recent promotional visit to the UK.
"Of course, there is this Salman [Khan] and Eid connection. But I am quite sure that people won't be let down. It has got everything to make the movie a huge success," Kapoor told journalists in London.
"I am sure the audience will enjoy the film because they are out to watch entertaining movies on Eid. Bodyguard promises a lot of entertainment."
Kapoor said that she got on well with Khan during the filming, as they both work to a similar schedule.
"I am not a very morning person," she said. "So it has actually worked out perfect for me because Salman is never on the set before 11 and I don't wake up before 10. It suited me fine because I hate early mornings."
The Hindi film celebrity had previously worked with her co-star on the commercially under-performing Kyon Ki and Main Aur Mrs Khanna.
However, Khan recently told Digital Spy that audiences should not see his pairing with Kapoor as "jinxed".
Ash King's 'I Love You', from the film's soundtrack, has already had more than a million hits on YouTube and has reached number one in the Asian music charts.
Bodyguard releases August 31.
> Read our interview with Salman Khan here