© Getty Images

Jaden and Willow Smith -

The Smith family has an uncanny skill for maintaining a strong family bond across multiple generations, all while living in the public eye. Willow Smith hosts a talk show with her mom, Jada Pinkett Smith, and her grandmother, and she and her brother Jaden are equally close.

© Getty Images 

Jaden and Willow Smith -

Willow Smith has said that their relationship is more like that of identical twins than the average brother and sister. "We're like binary stars," she once said, "like two parts of one thing."

© Getty Images 

Chris and Scott Evans - Chris Evans made it big as Captain American before his brother Scott came on the scene, but the two have always been tight. Their 'Know Your Bro' segment on 'The Tonight Show Starring Jimmy Fallon' proved they have the kind of friendship that only brothers can maintain.

© Getty Images

Chris and Scott Evans -

That being one where you mercilessly embarrass each other on live TV and manage to stay friends afterwards...

© Getty Images 

Dakota and Elle Fanning -

Dakota and Elle Fanning are living similar lives as successful Hollywood actresses, but they've said that they never talk business when they're hanging out just the two of them. That's real sister time!

© Getty Images 

Chris, Luke, and Liam Hemsworth -

The three Hemsworth brothers, each one as handsome as the next, are constantly trolling each other on the red carpet and online to the delight of their fans! They're also often seen surfing and camping together as a family in their native Australia.

© Getty Images

Maggie and Jake Gyllenhaal - Maggie and Jake Gyllenhaal have both made it to the A-list in Hollywood, and they're enjoying the ride side by side. They even played on-screen siblings in the 2001 film 'Donnie Darko.'

© Getty Images

Kendall and Kylie Jenner -

These two literally grew up on TV together, an experience that few others can relate to. You'd think the Kardashian-Jenner family would be sick of each other by this point, but Kylie and Kendall are still inseparable.

© Getty Images

Gustaf, Bill, and Alexander Skarsgård - From leading roles in 'True Blood' and 'Vikings,' to Bill's terrifying portrayal of Pennywise the clown in 'It' (2017), there's no lack of talent in the Skarsgård family. It goes all the way back to their father, the famous Swedish actor Stellan Skarsgård. They have been known to prank each other on the red carpet, in typical brotherly fashion!

© Getty Images

Gigi and Bella Hadid -

Supermodel sisters Gigi and Bella Hadid are always together and supporting each other. They even spent lockdown living in the same house during the COVID-19 pandemic, which is a true test of any relationship!

© Getty Images 

Beyoncé and Solange - Although Beyoncé is clearly a superstar, she and Solange are both respected artists in their own rights and sometimes collaborate. For example, Solange came out and did a number with Beyoncé during her famous 'Homecoming' performance at Coachella.

© Getty Images

Beyoncé and Solange -

Their mother, Tina Knowles, said that Beyoncé used to be irritated by her younger sister wanting to hang out with her all the time. Knowles sent the two girls to counseling together when they were young so they could understand each other better and strengthen their relationship.

© Getty Images 

Mary Kate, Ashley, and Elizabeth Olsen -

Like most identical twins, Mary Kate and Ashley Olsen are inseparable. Their younger sister Elizabeth has risen to fame in recent years with roles in 'WandaVision' and the 'Avengers' franchise.

© Getty Images 

Mary Kate, Ashley, and Elizabeth Olsen -

They're all quite private so we don't see public displays of affection very often, but the twins named one of their fashion brands after their siblings: Elizabeth & James Clothing.

© Getty Images 

The Jonas Brothers - The Jonas brothers are constantly in the public eye and together, whether they're performing or just hanging out with their various fantastic wives. Their closeness has been unquestionable since the days they wore matching purity rings!

© Getty Images

Paris and Nicky Hilton -

Paris and Nicky Hilton are quite different in their public personas, but behind the scenes they're extremely close and supportive of each other. In the documentary 'This Is Paris' (2020), it was clear that Nicky is one of the few people who knows the real Paris.

© Getty Images

Ben and Casey Affleck -

Ben Affleck is usually associated with his best bud Matt Damon, but he's equally tight with his younger brother Casey, if not more! Ben Affleck spoke about his connection to both of them, saying his relationship with Damon is "an incredibly valuable friendship and it's very precious and so is my friendship with my brother. I don't know what I would do without those guys."

© Getty Images 

Poppy and Cara Delevingne -

Poppy and Cara Delevingne have a seven-year age gap between them, but that hasn't stopped them from fostering a beautiful friendship. The British sisters even decided to move in together and designed their dream home in LA.

© Getty Images 

Ashlee and Jessica Simpson -

Both Ashlee and Jessica Simpson have been through a lot in their careers. They've both been ridiculed and had ups and downs, but they've always been there for each other. Jessica published an extremely personal and revealing memoir called 'Open Book' in 2020, and her sister was her number one supporter.

© Getty Images

Andrew, Owen, and Luke Wilson -

Luke and Owen Wilson have both reached high levels of success in the film industry and often collaborate on each other's movies. Their third brother, Andrew, also works in Hollywood, and the three are extremely close.

© Getty Images 

Andrew, Owen, and Luke Wilson -

Weathering tough times together has created an even stronger bond. When Owen Wilson went through a crisis in 2007 and attempted to take his own life, it was Luke who found him and saved him by calling 911. Owen credits his brother Andrew with his recovery, as he immediately moved in and supported Owen through each day until he was in a better place. 

© Getty Images 

Rooney and Kate Mara -

The Mara sisters are so different in their acting and personal styles that many people don't even know they're related. They successfully differentiated themselves, which helped to cut out any problematic sibling rivalries.

© Getty Images 

Monica and Penélope Cruz -

Penélope Cruz is considered one of the most beautiful actresses of contemporary times, and her sister Monica is almost her double! While Penélope has international success in English-speaking movies, Monica is a star of Spanish productions. However, she was once employed as Penélope's body double in 'Pirates of the Caribbean: On Stranger Tides' (2011) because the two are so similar!

© Getty Images 

Joan and John Cusack -

Despite sharing a last name, many aren't aware that John and Joan Cusack are actually siblings. Both award-winning actors have supported each other throughout their careers though. Joan credits John with encouraging her for decades as she navigated the often choppy waters of Hollywood.

© Getty Images 

Sofia and Nicole Richie -

Nicole Richie was adopted by Lionel Richie, who later had a biological daughter, Sofia. There's a big age gap between the two, which seems to have fostered a nurturing relationship. Sources say that Nicole was concerned about Sofia's relationship with the much older Scott Disick, but they started spending more time together again after the couple went their separate ways.

© Getty Images 

James and Dave Franco - James Franco and his younger brother Dave have always appeared to have a close relationship, collaborating with each other on many projects including the critically-acclaimed comedy 'The Disaster Artist' (2017). James Franco said, “It was one of the most enjoyable experiences because of the fact that I was working with my brother."

© Getty Images/BrunoPress

Oliver and Kate Hudson -

Kate Hudson and her actor brother Oliver went through a difficult time when their parents, Goldie Hawn and Bill Hudson, went through a bitter separation. Luckily, they managed to remain close friends through all of the turmoil and support each other's acting careers.

© Getty Images 

Ralph and Joseph Fiennes -

Ralph and Joseph Fiennes are both incredibly intense and talented actors. Despite the fact that they come from a large creative family with five other siblings, Joseph insists that they aren't competitive with each other and get along really well. They're particularly involved in each other's lives now that Ralph is an uncle to Joseph's kids.

© Getty Images 

Marissa and Giovanni Ribisi -

Marissa and Giovanni Ribisi are another pair of Hollywood twins, which always precipitates a close bond. They're so close that they both joined Scientology together!

Sources: (AllWomensTalk) (The Talko)

See also: Meet the nicest stars in Hollywood

© Getty Images