Denim darling! Make-up free Lena Dunham is Sixties chic in jean dress as she supports mentor Judd Apatow at film event

She isn't necessarily known for her sense of style.

But Lena Dunham appeared rather chic on Monday, displaying her fashionable retro flair as she attended an event with Judd Apatow in New York City after spending the day shopping in Brooklyn.

The 29-year-old entertainer, who joined her mentor as he gave a Q&A for the Film Society of Lincoln Center Summer Talks, made a splash in a Sixties-inspired denim dress featuring bell sleeves and a tie-neck.

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Her mentor: Lena Dunham joined Judd Apatow for a Q&A he was doing for the 2015 Film Society of Lincoln Center Summer Talks in New York City on Monday

Her mentor: Lena Dunham joined Judd Apatow for a Q&A he was doing for the 2015 Film Society of Lincoln Center Summer Talks in New York City on Monday

The loose-fitted knee-length number was detailed with a ribbed neckline and cuffed around her wrists.

The Girls actress and creator teamed her denim dress with funky platform sandals and a petite dusty pink crossbody bag.

Lena appeared to be wearing minimal make-up and kept her cell phone at hand as she took on the town.

Seventies chic: Lena looked cute in a denim dress with a ribbed neckline and bell sleeves
Seventies chic: Lena looked cute in a denim dress with a ribbed neckline and bell sleeves

Seventies chic: Lena looked cute in a denim dress with a ribbed neckline and bell sleeves

They make a great team: The actress and writer and the producer are the masterminds behind Girls

They make a great team: The actress and writer and the producer are the masterminds behind Girls

Over the weekend, the award-winning star joined her BFF Taylor Swift on stage during her 1989 World Tour in New Jersey.

She and other famous friends have been helping out the country crooner while performing her hit single, Bad Blood.

Meanwhile, Lena recently surprised her fans as she made the decision to not marry her longtime boyfriend, Jack Antonoff, after same-sex couples won the right to marry nationwide by the US Supreme Court. 

Retail therapy: Earlier in the day, Lena was seen doing some shopping in Brooklyn, wearing the same outfit

Retail therapy: Earlier in the day, Lena was seen doing some shopping in Brooklyn, wearing the same outfit

Go retro like Lena in a demure denim dress

Lena Dunhams is definitely part of the cool-girl club in New York City this week. First, she was on hand at Taylor Swift's concert in N.J. along with the super-cool gang Gigi Hadid, Hailee Steinfeld, and Lily Aldridge.

Today, she was cutting a swath all her own, spotted shopping in Brooklyn wearing this super-cute Alexa Chung for AG Jeans denim shirt dress.

We love the Little House on the Prairie feel--very '70s-- with bell sleeves, pintucks at the neckline and a tie-neck. She paired the dress with a crossbody bag and a pair of platforms. If you've just gotta have this exact piece, click right to buy at Farfetch.

If, on the other hand, you'd like to shop around a bit, check out the similar items we found at Topshop, Forever 21 and Romwe.

* PRICES MAY NOT BE AS ADVERTISED

She explained her complicated thought process about postponing her nuptial ceremony in an essay penned for The New Yorker which was released on Friday.  

Lena was one of the most outspoken activists in support of legalizing same-sex marriage in the States, even going as far as boycotting marriage until every human was given the right.

'I liked that our anti-marriage plan wasn't absolute, and that it teased at a brighter future for all (a future where I might get to wear the fluffy white dress),' she wrote about her wedding fever. 

Every detail counts: The 29-year-old paired her denim frock with a petite pink purse and funky platform sandals
Every detail counts: The 29-year-old paired her denim frock with a petite pink purse and funky platform sandals

Every detail counts: The 29-year-old paired her denim frock with a petite pink purse and funky platform sandals

Shaping up: Lena showed off her legs after documenting her workout efforts

Shaping up: Lena showed off her legs after documenting her workout efforts

'Soon after, another kind of text started to trickle in: "Now you can get married!" "Hello, bride to be" "So, when's the wedding??"' the actress fondly remembered after the Court decision. 

Her joy was overshadowed with thoughts of second guessing her stance on wedlock, as she explained: 'We were exposed, vulnerable to marriage's strange power once more.

'Had a perfectly earnest moral and political stance actually been a convenient stalling tactic?'

As Lena recollected, Jack felt no immediacy, 'because, as a man, his entire life has not been shaped by a desire for, or a rejection of, a fluffy white dress.' 

Girl gang: Lena joined her BFF Taylor Swift and other gal plas - Hailee Steinfeld, Gigi Hadid, and Lily Aldridge - on stage during the 1989 World Tour in New Jersey on Friday

Girl gang: Lena joined her BFF Taylor Swift and other gal plas - Hailee Steinfeld, Gigi Hadid, and Lily Aldridge - on stage during the 1989 World Tour in New Jersey on Friday

In fact, she was the first one to bring up the idea of deferring their future nuptials.

'I held Jack's hand and said, "Let's not talk about marriage for a while, O.K.?" He looked grateful and relieved. I felt unburdened but sad. The subject wasn't particularly loaded for him. It never would be.'

However, wedding bells are not entirely off the table for the couple of three years and remain a definite maybe.

No rush: Lena recently revealed she is in no hurry to tie the knot with her longtime love Jack Antonoff, right

No rush: Lena recently revealed she is in no hurry to tie the knot with her longtime love Jack Antonoff, right

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