True Detective star, 50, looks ageless in daring plunging gown at star studded premiere

made a show-stopping appearance in New York on Monday night as she stepped onto the red carpet for the premiere of her latest movie, The Whisper Man.

 looked incredible in a floor-length black gown featuring a contrasting pale pink bralette-style bodice and ultra-thin spaghetti straps.

The minimalist design showcased Michelle’s toned arms and décolletage, while its figure-skimming silhouette fell all the way to the floor.

Keeping the rest of her look suitably understated, the True Detective star wore her highlighted brunette hair loose in soft waves around her shoulders and opted for glowing makeup, a glossy pink lip and delicate earrings.

 was joined at the Paris Theatre in New York City by her co-stars Robert De Niro and Adam Scott, with the trio posing together before joining the rest of the cast for photographs.

The actress stars alongside the Hollywood heavyweights in Netflix’s adaptation of Alex North’s bestselling novel The Whisper Man, which arrives on the streaming platform on August 28. The psychological thriller follows a widowed writer whose eight-year-old son is abducted, forcing him to turn to his estranged father, a retired police detective, for help.

But while Michelle’s latest red carpet appearance may have had fans wondering how she stays in such incredible shape, the actress has been refreshingly candid about the fact that there is no magic formula behind her physique.

Michelle Monaghan’s fitness routine

Michelle previously admitted that her approach to exercise changes depending on what is happening in her life.

“I get asked about my fitness routine a lot and to be honest, I try everything – and sometimes – I do nothing at all!” she shared on Instagram, adding: “Like life, my workout routine ebbs and flows.”

One exercise that has remained a firm favorite, however, is Pilates, which Michelle has described as a “game changer” for her “mind, body and spirit.”

More recently, she revealed that she exercises almost every day, typically incorporating two strength-training sessions and several Pilates workouts into her week.

“I exercise almost daily, and I meditate as well,” she told Entertainment Tonight. “It helps me have a calm, focused nervous system, and that makes me look and feel beautiful.”

Of her exercise routine, she added: “I do two days of strength training a week and Pilates a few times a week. That’s been tried and true for me.”

Her love of exercise has also become something of a family affair. Michelle, who shares daughter Willow and son Tommy with her husband Peter White, recently revealed that she has begun working out with her teenage daughter.

“We do Pilates and CoreYoga; she likes to weight train too, so we both have our 10-pound weights and we’re doing our squats and all the things,” she told Harper’s Bazaar.

Michelle said exercising with her daughter gives her “double the endorphins”, adding: “I’m getting the love endorphins, and then we’re working out together.”

The actress also has a long history of staying active outdoors. She has previously run a half-marathon, hiked and taken up surfing, while filming season three of The White Lotus in Thailand introduced her to another surprisingly effective workout: water aerobics.

Michelle revealed that co-star Leslie Bibb got her and Carrie Coon into the pool between filming, describing water aerobics as an “amazing workout.”

What does Michelle Monaghan eat?

Her attitude towards food is similarly relaxed, with Michelle favoring balance over restriction. “Balance, balance and more balance,” she previously told Dolce of her health and beauty philosophy. “I don’t deny myself anything, and honestly, that approach keeps me happy.”

She added that she loves food, eating out and cooking, explaining that because she considers herself “a bit of a foodie”, she tries to balance it with a daily workout such as a hike, jog or spin class.

Michelle has also previously revealed that she drinks plenty of water and favors a generally healthy diet, but doesn’t believe in depriving herself. “I eat a really well-balanced diet,” she told Into The Gloss, before admitting she is equally happy stopping for fast food after a day at the beach. “Everything in moderation.”

That philosophy appears to extend well beyond her diet. Following a previous melanoma diagnosis, Michelle has become increasingly conscious about her overall health and says her approach to ageing is focused on supporting her body rather than chasing youth. “I really do believe everything starts from the inside out,” she told Harper’s Bazaar in 2025