Gwyneth Paltrow’s derriere at center of bold claim made by her Marty Supreme co-star

Fashion designer Isaac Mizrahi has credited Gwyneth Paltrow with having the finest rear end in the whole entertainment industry.

The pair have a professional history stretching back to the 1990s, when she first rose to stardom and he created clothing especially for her.

Now they have reunited onscreen in the new Timothee Chalamet vehicle Marty Supreme, amid a cast including Odessa A’Zion, Kevin O’Leary and Fran Drescher.

Mizrahi, 64, showered praise on Paltrow, 53, while discussing their past working relationship – but his approbation was not directed at her dress sense.

‘I used to make clothes for Gwyneth in the ’90s. I swear to you, I remember when she used to come in for fittings,’ he shared with People. 

‘She would leave after things, and I’d say that girl has the most fabulous a** I’ve ever seen. She has the best a** in show business, I mean that,’ Mizrahi trumpeted.

Fashion designer Isaac Mizrahi has credited Gwyneth Paltrow with having the finest rear end in the whole entertainment industry; Paltrow pictured at the 2017 Met Gala 

‘That’s the one thing I can remember about Gwyneth. Except for the fact that she’s hilarious and so good in this,’ he made certain to add.

Meanwhile Mizrahi has been acquainted with the movie’s director Josh Safdie ‘since he’s a little boy,’ the fashion designer remembered. 

‘I met him at my downstairs neighbor’s. He was best friends with her son. We worked together. They made these little films in 2008. I knew him as a young filmmaker.’

Marty Supreme stars Chalamet as a character loosely modeled on Marty Reisman, an underground New York ping pong player from the 1940s.

Paltrow plays a glamorous ex-movie star in a performance she said was inspired by Grace Kelly, who retreated from Hollywood to marry Prince Rainier of Monaco.

Meanwhile Mizrahi holds a bit part in the picture as a publicist working for Paltrow’s character Kay Stone, who herself becomes sexually involved with Marty.

Back in 2013, celebrity fitness trainer Tracy Anderson candidly discussed helping Paltrow get her rear end back into shape in after her second pregnancy.

Paltrow shares her children Apple, 21, and Moses, 19, with her first husband Chris Martin, whom she split from in 2014 in what she provoked widespread mockery by describing as ‘conscious uncoupling.’

Paltrow features in Marty Supreme as a glamorous ex-movie star in a performance she said was inspired by Grace Kelly, who retreated from Hollywood to marry Prince Rainier of Monaco

Mizrahi, pictured on Wednesday, has a professional history with Paltrow stretching back to the 1990s, when she first rose to stardom and he created clothing especially for her

After bringing her son into the world, Paltrow enlisted Anderson’s help to regain her old figure in time for the shoot of the first Iron Man film.

‘She had 35 extra pounds on her. Her butt was long and she had outer thigh problems,’ Anderson shared in an interview with In the Gloss.

‘Gwyneth is lucky because she’s really tall, so she can hide it really well in clothes, but she had significant problem areas,’ the fitness trainer observed.

Anderson sent Paltrow a video of an exercise for her to complete that involved her swinging her legs up and down, as well as over and around a chair. 

She was meant to engage in two-hour workout sessions six times a week in which she would perform 60 repetitions on each leg, eventually with the added strain of ankle weights, in order to sculpt her behind into the shape she wanted.

Once she achieved her desired results, she asked a friend: ‘You know, this isn’t so bad for 40, right?’ and the pal replied: ‘It’s not so bad for a 22-year-old stripper!’