Robert Downey Jr. and Denzel Washington cheer on LeBron James as he's honored at the Lakers vs. Bucks game in Los Angeles

Robert Downey Jr. and Denzel Washington witnessed LeBron James as he was honored for breaking the NBA’s all-time scoring record on Thursday.

The Iron Man actor, 57, and the Flight star, 68, attended the game between the Los Angeles Lakers and the Milwaukee Bucks at Crypto.com Arena in Los Angeles, with Bucks coming out on top at the end of the night with the final score 115-106.

Lakers celebrated James’s recent scoring record with a second ceremony prior to tonight’s game, after he passed Kareem Abdul-Jabbar to become the league’s all-time leading scorer.

Taking charge of the ceremony was Lakers legend and Hall-of-Famer James Worthy, who opened the celebration by congratulating LeBron.

Other stars at the game included boxer Floyd Mayweather, 45, actor Jason Bateman, 54, and filmmaker Kenya Barris, 48, as well as LeBron’s family.

Lakers fan: Robert Downey Jr. witnessed LeBron James as he was honored for breaking the NBA’s all-time scoring record on Thursday, before the game between the Los Angeles Lakers and the Milwaukee Bucks at Crypto.com Arena in Los Angeles

Star-studded: Also present at the star-studded game was actor Denzel Washington and boxer Floyd Mayweather

Leading man: Lakers celebrated James’s recent scoring record with a second ceremony prior to tonight’s game, after he became the league’s all-time leading scorer

Downey Jr. sported a casual look for the occasion, wearing a black jacket and a blue hat. The actor accessorized with a pair of black-rimmed reading glasses.

Meanwhile Denzel rocked a sporty black zip-up top and a black Yankees hat. The Fences star was seen chatting it up courtside with Mayweather.

The athlete looked casual cool in a long-sleeve green top and an orange baseball hat.

Floyd also sported a matching orange hoodie tied around his waist.

Jason Bateman also had prime seats to the event, and sported grey jeans and a grey t-shirt along with a black jacket.

The actor kept his brunette tresses covered up with a baseball hat and was seen getting up from his seat in the heat of the moment, enthralled by the action taking place on court.

Filmmaker Kenya Barris, 48, donned a grey hoodie and jeans for the occasion.

President of the Los Angeles Lakers Jeanie Buss, 61, and Linda Rambis sat next to each other while enjoying the game.

Casual cool: Downey Jr., 57, sported a casual look for the occasion, wearing a black jacket and a blue hat

Sporty: Meanwhile Denzel, 68, rocked a sporty black zip-up top and a black Yankees hat

Catching up: The Fences star was seen chatting it up courtside with Mayweather

Prime seats: Jason Bateman also had prime seats to the event, and sported grey jeans and a grey t-shirt along with a black jacket

Enthralled: The actor kept his brunette tresses covered up with a baseball hat and was seen getting up, enthralled by the action taking place on court

Comfortable: Filmmaker Kenya Barris, 48, donned a grey hoodie and jeans for the occasion

Enjoying the game: President of the Los Angeles Lakers Jeanie Buss, 61, and Linda Rambis sat next to each other while enjoying the game

LeBron was clad in a dapper double-breasted suit as he gave a speech at the event, and was joined by his entire family on the court for the ceremony before the Bucks game.

His wife Savannah, 36, stunned in a taupe co-ord with crystal details, and held an Hermes handbag in her hand.

She wore her light blonde tresses parted on the side and cascading down in loose waves.

Also at the ceremony were the couple’s three children sons Bronny, 18, and Bryce, 15, and daughter Zhuri, eight, as well as LeBron’s mom Gloria Marie James, 55.

James dedicated more time of his ceremony to his family, introducing them as ‘his starting five.’

‘You know, my two boys – Bronny, Bryce – my daughter Zuri. My mom, Gloria, my wife, Savannah, like this is my starting five,’ he added.

‘And I wouldn’t be able to do the things that I do on a day to day basis, I wouldn’t be out, I wouldn’t be able to come on this court and showcase my talent to you guys every single night, if I didn’t have the support, and I didn’t have the commitment from my family that allowed me to do the things that I do.

Speech! LeBron was clad in a dapper double-breasted suit as he gave a speech at the event while his family watched on

The former top scorer: James achieved his recent scoring record after he passed Kareem Abdul-Jabbar’s (pictured) record of 38,387 – which was set in 1989

Loved ones: He was joined by his family during the celebration (L-R) LeBron, son Bryce James, wife Savannah James, daughter Zhuri James, mom Gloria Marie James, and son Bronny James

Proud wife: Savannah, 36, was every inch the proud wife as she watched her husband receive the honor next to her daughter Zhuri

‘So, you know, I wouldn’t be standing up here. I wouldn’t be who I am. I wouldn’t be able to inspire so many people all over the world.

‘I wouldn’t be able to inspire the Laker faithful. I wouldn’t be able to inspire, nobody if I didn’t have the sacrifices and the commitment from my starting five right here. So please give them a round of applause. Please.’

Just two days ago, James knocked down a fadeaway jump shot from the left elbow that officially saw him pass Kareem for first on the all-time NBA career scoring list.

Fans shelled out thousands to secure a seat at Crypto.com arena to witness history, and James didn’t disappoint them – putting on a show by dropping 38 total points to seal the record.

James went into the game against the Oklahoma City Thunder only needing 36 points to overtake the record of 38,387 – which was set by Abdul-Jabbar in 1989.

Unfortunately, the record was the only moment of triumph for Lakers fans – as they watched the home team lose 133-130 to OKC.