In R-rated comedy Bachelorette, three friends are asked to be bridesmaids at a wedding of a woman they used to ridicule back in high school.
Bachelorette is directed by Leslye Headland and stars Kirsten Dunst, Isla Fisher, Rebel Wilson, Lizzy Caplan and Adam Scott.
The film is set for a US release in September.
Watch the redband trailer.