The Oscars are the most celebrated awards show in Hollywood, and while there have been many highs throughout the years, there have also been some major boo-boos. Check out the good, the bad and the ugly moments of the Academy Awards.

Thanks, but no thanks:

In 1936, just a few years after the Academy Awards were formed, acclaimed screenwriter Dudley Nichols - and the man who made John Wayne a star with Stagecoach, became the first nominee to decline his Oscar for The Informer.

The Informer, which told the tale of a former Irish Republican Army man who is desperate to escape his bleak Dublin life, from a script he adapted from a book about the Irish War of Independence, also won Oscars for director John Ford, actor Victor McLaglen and Max Steiner's score.

Nichols snubbed the award as an act of solidarity with the Writers Guild, which was striking at the time. He was elected president of the writer’s guild a few years later.

Since Dudley's historic stance, a plethora of actors and directors have gone on to boycott/not-show-up at the prestigious award ceremony including Marlon Brando, Michael Caine, Elizabeth Taylor, Woody Allen and Will Smith.

 American Vice-President and agriculturalist, on an evening out with film star Olivia De Havilland and screenwriter Dudley Nichols 

Pushing the envelope too far:

Coming-of-age tale Moonlight may have won the Oscar for Best Picture on Hollywood's biggest night in 2017, but the win was overshadowed by an embarrassing onstage gaffe that instead saw La La Land mistakenly announced as the winner of the top award.

In a mishap that caused uproar and confusion, presenters Warren Beatty and Faye Dunaway initially announced that romantic musical La La Land, the presumed favourite for best picture, had won.

As the casts of both films stood awkwardly on stage, Beatty explained he had been given the wrong envelope to open.

It was the first time in living memory that such a major mistake had been made at the Academy Awards.

The moment it all went so wrong

Tie-rrific:

There has only been six ties at the Academy Awards over its 90-plus running as The Academy of Motion Picture Arts and Sciences (AMPAS) struggled to a make a clear cut decision on who should take home the golden trophy.

The most talked-out Oscar tie occurred in 1969 when both Barbra Streisand, who was just 26 years old at the time, and Katharine Hepburn shared the Best Actress gong, with the pair both receiving 3,030 votes.

Presenter Ingrid Bergman looked utterly shocked as she announced,  "It’s a tie," she said to gasps from the audience. "The winners are Katharine Hepburn in ‘Lion in the Winter’ and Barbra Streisand...".

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Head over heels:

Jennifer Lawrence made headlines for all of the wrong reasons after tripping as she walked up stairs to collect her Best Actress award for Silver Linings Playbook.

J-Law was seen momentarily hanging her head in her hands after her strapless Dior Haute Couture gown caused the mishap on the steps. But she made sure she owned the moment and cracked a joke about the incident, telling the crowd: "You guys are just standing up because you feel bad that I fell. That's really embarrassing."

Handled like a pro!

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The naked truth about the Oscars FLASHback:

in 1974, the audience got more than they bargained for at the Oscars. As host David Niven introduces presenter Elizabeth Taylor artist/activist Robert Opel ran naked across the stage, flashing a peace sign, among other things.

After he regained his composure, Niven said, "Well, ladies and gentlemen, that was almost bound to happen... But isn't it fascinating to think that probably the only laugh that man will ever get in his life is by stripping off and showing his shortcomings?"

Opel gave a press conference following the show stating that he wasn't ashamed to be nude in public and that the act was "a hell of a way to launch a career".

Tragically, Opel was murdered in his art gallery in 1979 during a bungled robbery.

Halle Berry makes history:

Halle Berry won the Best Actress for her work in Monster's Ball in 2002, and made history as the first black woman to win the award in that category.

Berry, who faced off competition against Renée Zellweger, Nicole Kidman, Sissy Spacek and Judi Dench, gave a heartfelt speech and paid homage to black women who came before her.

"This moment is so much bigger than me," Berry told the crowd through tears. "This moment is for Dorothy Dandridge, Lena Horne, Diahann Carroll.

"It's for the women that stand beside me, Jada Pinkett, Angela Bassett, Vivica Fox. And it's for every nameless, faceless woman of color that now has a chance because this door tonight has been opened."

Berry remains the only black woman to win the Oscars’ Best Actress honour.

Halle Berry was visibly emotional during her acceptance speech

Charlie Chaplin gets the longest standing ovation EVER:

Chaplin participated in one of the greatest moments in Oscar history when he returned to the United States for the first time in over a decade to accept his Honorary Oscar in 1972.

During the 45th Academy Awards, he went on stage to receive a Lifetime Achievement award and was also awarded with the longest standing ovation in Oscar history - lasting around a whopping 20 minutes before, during and after his speech.

 Actor and director Charlie Chaplin holding the Oscar he received in Hollywood, with his wife Oona 

James Franco and Anne Hathaway ruin the Oscars:

The ill-coupling of co-hosts James Franco and Anne Hathaway at the 2011 Academy Awards received a massive backlash, with the general consensus being that they were a hot mess.

Franco seemed to have mentally checked out during the ceremony, while Anne's over-the-top attempt to win over the crowd was an epic fail. 

From the cringey jokes to the lack of chemistry between, it was an epic fail.

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Angelina's right leg goes viral:

In 2012, Angelina Jolie's overexposed limb overshadowed that year's Oscars, and made front page headlines around the world.

The term 'legbombing' quickly became a viral term with a plethora of hilarious memes doing the rounds online, with bloggers and artists having fun with photoshop. Jolie's right leg even got its own Twitter account!

Jolie's right leg was the talk of the town in 2012

Watch The 90th Academy Awards on RTÉ2 on Monday at 9:30pm.