The most daring looks Lily Collins has ever worn, from dresses with thigh-high slits to sheer fabrics

The actor's gown, designed by Paule Ka, featured an oversized, white bow in the back, which was so large it was visible from the front, too.

The outfit consisted of a cropped tank top and a low-rise, tea-length skirt.

She paired the leather skirt with a pair of brown-and-black closed-toe pumps and finished off the look with a sleek updo.

This time, her premiere look included a high-neck cropped tank top from Paper London and a mid-rise skirt designed by Halston Heritage that draped all the way to the floor.

She accessorized with an oversized gold chain necklace and a gold bracelet.

The actor opted for a sheer Michail Sykianakis dress with long sleeves that cut off at the knees. A stitched design covered her skin from her chest to her upper thighs and bits of her forearms.

She paired it with a pair of simple black Christian Louboutin heels.

Collins rocked a calf-length, one-shouldered Cushnie Et Ochs dress that featured two cutouts: one along her chest and the other exposing her torso.

She wore matching white, pointed-toe pumps.

The gown, designed by Julien Macdonald, featured fabric that matched the actor's skin tone and gave her the effect of an optical illusion. The metallic-colored embellishments gathered around her chest and torso and dripped down to her upper thigh.

The gown had an ultra-high front slit as well as a plunging sheer neckline that went down to her navel. She wore nude-colored pumps to match.

Her Elie Saab gown featured lace-lined cutouts along her ribs and a partially see-through skirt that extended to the floor.

Her look was chic and relaxed for this appearance in Italy.

The tube top and the waistband of the pants had a horizontal ribbed texture, and the space between the two pieces showed off Collins' abdomen.

She wore dark-colored nail polish, gold jewelry, and a red lip.

Her dress, designed by Zuhair Murad Couture, was long-sleeved and draped down to the floor.

She paired it with a small, black clutch bag and a short pixie-cut hairdo.

She traded in see-through dresses for a see-through jumpsuit during fashion week. Collins paired this white lace look with black undergarments, a thin black Chanel belt, a white shoulder bag, and black pumps.

This sheer-looking, black Zuhair Murad Couture minidress featured silver embellishments, a plunging neckline that extended close to Collins' naval, and a choker-style neck detail.

She finished off the look with Giuseppe Zanotti pumps.

The Saint Laurent gown was shimmering gold and had both a plunging neckline and a daring front slit. With super-thin straps and reflective sequins, this gown looked like it was draped perfectly over her.

Stuart Weitzman heeled sandals in a matching gold color pulled the look together, as did her '20s-style wavy hairdo.

This flowing rust-colored dress had a neckline that dipped down to the actor's navel. Underneath, a darker-colored red bandeau crossed her chest.

She channeled the "Manus x Machina: Fashion in an Age of Technology" theme with chain-link jewelry by Tiffany & Co.

Her Elie Saab Couture gown featured both a plunging neckline and a daring slit up the side of her leg. It boasts a back consisting of two crisscrossing velvet straps and two that run parallel to each other on the sides.

She showed off the back with her hair pulled up into a sleek bun.

This velvet and sheer dress had gold and silver embellishments made to resemble the New York City skyline.

Collins wore this pleated, metallic-colored gown to the "Rules Don't Apply" premiere.

The dress had both a sweetheart neckline and a slit that nearly reached her hip. It stopped just above her ankles, which showed off a pair of silver, strappy sandals.

She kept her jewelry simple with rings on both of her index fingers.

While the all-white gown showcased intricate detailing and completely covered Collins from the turtleneck to her wrists and toes, the fabric was totally sheer. It gave a delicate look to the otherwise full-coverage dress.

The gold and silky Amanda Wakeley gown had a slip-style silhouette, with an asymmetrical neckline.

The neckline spilled over one shoulder, flowing into an open back.

The Georges Chakra Couture gown was floor-length, sleeveless, and had a barely-visible crew neckline.

Horizontal stripes in varying widths were made up of pale-blue sequins, while the rest of the fabric was see-through.

She wore her hair in an updo and carried a mirrored clutch bag.

The semi-sheer look had a skirt that ended just below her knees and a bodice that draped over her hips. A deep-V neckline emphasized the draping of the fabric.

Collins wore simple strappy heels from Schutz and understated jewelry from Graziela Gems.

Collins' pink, short-sleeved gown was made up of layers of tulle and floral appliqué throughout. The bodice and sleeves give the illusion that the embroidery has been placed directly onto her skin as the base layer is completely see-through.

She wore her hair in a high bun and showed off diamond earrings.

The halter gown's chest cutout gave the feminine gown a sexy edge.

The A-line skirt flowed from Collins' waist in tiers of pleated fabric.

The dress had a sheer base, and it was layered with black lace and silver embellishments.

Only part of the bodice was covered, creating cutouts on Collins' stomach.

The Markarian dress had a plunging neckline, quarter-length sleeves, and a form-fitting, asymmetrical skirt.

A ruched texture gave the dress dimension.

Semi-sheer fabric with a slight sparkle formed the A-line dress, which featured crisscross detailing on the bodice and a sweetheart neckline.

The skirt had a daring slit and a train for added drama.

The black dress was largely simple, as it had a loose bodice and subtly pleated skirt.

But the gown popped with a plunging neckline that was trimmed by sparkly embellishments and held together with a black bow.

She arrived at the event in a sheer, black Elie Saab gown.

The neckline of the see-through dress plunged all the way to Collins' waist, where it met a belt. Sparkly embellishments covered the gown, and feathers lined the trim of the skirt.

The form-fitting Prada dress was mostly black, but it had a pink, feathered trim and red detailing right above it.

The neckline dipped to her waist, breaking up the black fabric.

The off-the-shoulder dress had a pointed neckline that mirrored the pointed shape of the top, which created cutouts on the side of the bodice.

A high-waisted skirt paired with the top. It had two layers: a black underskirt, and a sheer, black overskirt that flowed to the floor.

A sun-inspired headpiece completed the look.

The Givenchy ensemble consisted of a green skirt and coordinating shrug.

Collins wore a black crop top with a halter neckline under the cardigan. A large belt completed the look.

The long-sleeve dress had a high neckline and a full skirt.

On the center of the bodice, intricate embroidery sat atop sheer fabric, forming hands making a heart shape around a heart in the center of Collins' chest.

Smaller hearts decorated the see-through sleeves and skirt.

The bodice of the Georges Hobeika gown consisted of a sheer, mustard bodysuit with a deep-V neckline.

Lines of jewels atop sheer fabric created a striped pattern on the skirt, which bared Collins' legs.

Collins wore a white slip dress from Markarian to the event. Bejeweled straps gave way to a scoop neckline.

At a Saint Laurent show, Collins wore a sparkly YSL romper with sheer, black tights.

The romper had padded shoulders and a plunging neckline, creating a playful look.

Collins was photographed in the summer of 2021 walking down the street with Charlie McDowell while wearing a Ralph Lauren dress.

The long-sleeve gown was mostly black, with a suit-style top and peplum skirt. But a layer of white fabric lined the plunging neckline, and a daring train flowed out from the miniskirt.

The dress looked classic and modern all at once.

Collins paired a transparent, black top and black crop top with a floral skirt from Dior.

The floor-length skirt had a daring thigh-high slit that exposed Collins' sheer, black tights.

The tan Saint Laurent gown had long sleeves and a floor-length skirt.

It featured ruching down the center, which was created by the fabric being tied together in the center.

Two stomach cutouts added a daring edge to the gown.