ALISON BOSHOFF at the Oscars: Night Tinseltown took revenge on loser Timothee

A 'subdued' Timothee Chalamet made the rounds of the post Oscars parties on Sunday night, steering clear of the Governor's Ball where all the winners were having their statuettes engraved.

Perhaps it would have been too painful to watch everyone else celebrate. 

Chalamet suffered a night of public humiliation, losing out on Best Actor to Sinners star Michael B Jordan and being repeatedly mocked from the stage by ceremony host Conan O'Brien and others.

He had been the front runner to scoop the award this year for his performance as a ping pong champ in Marty Supreme, but lost momentum during a long awards season where he repeatedly came across as arrogant, while Jordan charmed the town.

His final misstep – remarks to the effect that nobody cared about opera or ballet – came on March 5, the day Oscars voting closed. It lost him all public sympathy but was probably too late to affect the result.

On Sunday, when the cameras cut away to an image of Chalamet sportingly clapping to celebrate Jordan's win, there was an audible ripple of laughter in the auditorium. 

That was the sound of the younger generation's great acting hero being mocked by his more successful, older peers.

Inside the Vanity Fair Oscar party, held this year at the LA County Museum, he sat rather glumly on a white sofa at the edge of the room while girlfriend Kylie Jenner mingled joyfully with her family – sisters Kendall Jenner and Kim Kardashian, and mother Kris Jenner. 

For at least some of the night, he wore sunglasses indoors. A party source said: 'He was very subdued, I didn't see him as much as crack a smile. He didn't circulate.'

He and Kylie left separately, oddly, but showed up together soon afterwards at Jay-Z and Beyonce's annual Gold party at the Chateau Marmont which, as is customary, was still in full swing when the sun came up on Monday.

The night belonged to Michael B Jordan, who is also, incidentally, a co-owner of British football team AFC Bournemouth. I saw him hugging fellow nominee Leonardo DiCaprio, clearly in tears, after the ceremony finished.

DiCaprio, who is more decent than his publicity sometimes suggests, spent quite some time speaking to Jordan and congratulating him on his arrival among the big league. 

As Jordan acknowledged emotionally from the stage it felt like a culturally significant moment. 

He's only the sixth black actor to win a Best Actor Oscar, following Sidney Poitier, Denzel Washington, Forest Whitaker, Will Smith and Jamie Foxx. (Only one black woman has won a Best Actress Academy Award – Halle Berry in 2002.) 

Jordan was cheered in every room he entered, including when he dropped by In 'n' Out Burger just down the road from the Dolby Theatre and ordered two double doubles and a side of fries. There was a frenzy of selfies and filming by customers.

DiCaprio, who has a new moustache, sat with model girlfriend Vittoria Ceretti during the show but afterwards she went to mingle with the fashion crowd at Vanity Fair and he sat quietly for a couple of hours, sharing a bottle of red wine with Guillermo del Toro at the Governors Ball. Maybe, at 51, he's no longer in his party era.

Irish Oscar winner Jessie Buckley was everywhere, of course, with husband Freddie Sorenson and all of her family, and fizzing with joy. 

'You can sleep when you're dead,' she said, cheerfully. She spent some time with Hamnet co-star Paul Mescal, who was glued to girlfriend Gracie Abrams.

Newly single Australian actor Jacob Elordi – star of Wuthering Heights – drew a lot of female attention wherever he went, including from actresses Nicole Kidman and Teyana Taylor. 

Elordi didn't bother with the press line at Vanity Fair but headed straight in for a couple of vodka and limes, and conversations with models Kendall Jenner, Cara Delevingne and the young Hollywood party crowd including actress Anya Taylor-Joy and beauty mogul Hailey Bieber.

Again, there was a couple partying apart here – with her husband pop star Justin Bieber steering clear of Vanity Fair but showing up around 2am at the Beyonce/Jay-Z party, minus his wife.

There were some grumbles about the new Vanity Fair party, which insisted that guests accept stickers over the cameras of their phones. Security was tight, and the guest list tighter.

Sean Penn, who won Best Supporting Actor for One Battle After Another, skipped the ceremony. The Mystic River star was in Ukraine on Sunday where he met president Volodymyr Zelensky in a show of support for the war-torn country.