The film is Olivia Wilde’s directorial debut, and stars Styles opposite Florence Pugh.
The pair play Jack and Alice Chambers, a married couple in the 1950s who move into an experimental community.
However, when Alice begins to suspect something isn’t right, events take an unexpected turn.
Chris Pine, Gemma Chan, KiKi Layne and Timothy Simons also appear in the psychological drama.
Don’t Worry Darling received a five-minute standing ovation, and the 28-year-old kissed his co-star as the cast were leaving the screener.
The moment between him and co-star Nick Kroll was captured on camera.
Harry Styles and Nick Kroll share a kiss following the premiere of Olivia Wilde's ‘Don’t Worry Darling’ at the Venice Film Festival. pic.twitter.com/hnhlwkm9hx
— Pop Base (@PopBase) September 5, 2022
One fan tweeted: “harry styles casually kissed a man 100% by choice in public”.
Another wrote: “Harry styles is the kind of man to kiss another man on the lips while the love of his life is right beside him”.
Despite keeping a low profile, Styles and Wilde are said to be in a romantic relationship, and met whilst on the set of the production.
Recently, Styles addressed the journey he’s been on with his sexuality, following intense speculations from fans about his love life.
Fans took to Twitter to share their reactions:
olivia wilde seeing harry styles and nick kroll kiss pic.twitter.com/a3jFHr9GMn
— abby! (@garfldcline) September 5, 2022
harry styles came in, giggled, said some words, slayed, kissed nick kroll and went back.
— Luna! (@littlebtrlight) September 5, 2022
Olivia Wilde begging Harry styles to not kiss nick kroll in front of all of the cameras and press at Venice film festival pic.twitter.com/YiQyXDQoIL
— BLACK LIVES MATTER (@willowhalliwell) September 5, 2022
harry styles kissing nick kroll at the don’t worry darling premiere pic.twitter.com/0Tg5Ycz4AX
— ً (@halocentraI) September 5, 2022
harry styles when he realises nick kroll is married pic.twitter.com/Td2QZMLvrz
— BIGGER THAN ELLE ×͜×🤍 (@louist_aimh) September 5, 2022
— Harry Styles, Olivia Wilde updates🍋🍋 (@Holiviaa1) September 5, 2022
AINT NO WAY HARRY STYLES KISSED NICK KROLL GOD I LOVE THIS MAN pic.twitter.com/etma5oEaOi
— marcella (@killnmeslowcth) September 5, 2022
did I just see a picture of harry styles and nick kroll kissing pic.twitter.com/DRcfe4hXDu
— paul (@paulswhtn) September 5, 2022
olivia wilde when harry styles kissed nick kroll pic.twitter.com/fWM4uMTnP0
— connor misses harry (@connoronIine) September 5, 2022
sitting at work rn and nobody knows nick kroll and harry styles kissed yesterday pic.twitter.com/DcwmcHmaD8
— mel⭐️ (@oi_mclissa) September 6, 2022
— eliʰˢ lived a daydream 🍉 (@hesdelicatepov_) September 5, 2022