Thiswasan ad-lib, and Myers' guffawing laughter is real.

Kunis also appears to venture to hide her face at the end.

When he did, he spit out his drink and laughed in genuine surprise and glee.

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Paramount Pictures / Viayoutube.com

It’s the fun of our real life chemistry."

The dialoguewasimprovised, and Matt Damon’s laughter was genuine.

It even seems like the camera operator is laughing as the camera appears to wobble.

Three different shots where Mila Kunis starts laughing, then covers her mouth with her hand, then turns away from the camera

Many of the lines were improvised, and the uncomfortable laughter wasreal.

Emma Watson, in particular, appears to lose it as Rupert Grint and Daniel Radcliffe chuckle.

you’re able to see Mindy Kaling get the giggles here.

Dwayne Johnson, Michelle Rodriguez, Tyrese Gibson, and Ludacris in Fast and Furious scene. Top quote reads: "You better hide that big ass forehead!"

you’re able to also see Ed Helmsduckingout of frame to hide his laughter.

This was apparently the 30th take because the cast kept laughing.

When Nanjiani started squawking, Will Arnett lost it.

Dwayne Johnson and Jason Statham have a conversation in a sequence of images where they both initially look serious but then break into smiles

18.In the live episode ofWill and Grace,the cast broke quite a few times.

19.They also cracked up onscreen when Jack unveiled his missing eyebrow to Grace.

Director Garry Marshallsaidit was his suggestion.

Image features scenes with Melanie Scrofano, Tim Rozon, and Dominique Provost-Chalkley from the TV show "Wynonna Earp." Various characters are shown in tense moments

“I said, ‘Richard, hit her with the box!

Bang the box on her finger.’

And [Roberts] laughed so honestly that we left it in the picture.”

Matt Damon and Robin Williams in a comedic dialogue scene: Matt smiles as Robin jokes about his wife farting in her sleep

22.Mark Curry was absolutely hilarious when he guest-starred onThe Jamie Foxx Showas a traffic school instructor.

He caused the actors to break multiple times.

The shot was kept in.

Saul and Kim are flossing at the bathroom mirror, and Rhea start laughing about Bob Odenkirk says "Wait till you see what I floss with"

Watch the moment here.

While this wasn’t intentional, Foxx went with it and made the moment funny.

Lily Gladstone’s laugh at Ernest’s attempt at flirting was real.

Two men, one wearing traditional Middle Eastern attire, engage in intense and profane conversation while one laughs

Watch the skit here:

Jessica and Michael J. Willett's characters in a humorous scene from "GBF," with dialogue on learning from mistakes and safe sex, ending with both characters laughing

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Rupert Grint, Daniel Radcliffe, and Emma Watson in a scene from a Harry Potter film, wearing Hogwarts school uniforms and conversing enthusiastically

John Krasinski in the background of a shot, covering his mouth with his hand so you can't him laughing

Jim Halpert looks amused while seated at his desk with his hand on his face. Another person points in the foreground

Mindy Kaling sitting behind Michael and Kevin and looking down while clearly holding in a laugh

Mindy Kaling stands at an event, smiling softly, wearing a casual cap sleeve top

Arrow pointing to Ed smiling as Brian Baumgartner as Kevin sits on "Santa's" lap in one scene and then Ed is gone in next shot

Ross tells them to sing along, and Jennifer laughs as she sits next to Lisa Kudrow as Phoebe

Jennifer again covering her mouth with her hand

Will Arnett and Kumail Nanjiani in a three-panel scene. Arnett asks about a signature sound, squawking, and continues to squawk while Nanjiani looks amused

Adam Scott is barely in frame, but you can see him scrunching up his face trying to hold in a laugh

Both actors clearly withholding laughter as they try to say their lines

Jack removes his eye patch to reveal a missing eyebrow, and both actors start laughing

Richard Gere and Julia Roberts acting a scene in a formal setting. Julia, wearing an elegant off-shoulder gown and gloves, reacts with laughter and surprise to Richard

Jared Padalecki literally biting his tongue so he doesn't laugh at Dean's line

The instructor nearly falls, and several actors in the background can be seen either turning from the camera or covering their faces

Jamie Foxx and a woman sitting next to him both are looking down at their desks to try to hide their laughs

Jamie speaking gibberish and saying people at home are going to think their TV messed up, and several actors in the background start laughing

A scene from a movie featuring Lily Gladstone speaking in Osage, and Leonardo DiCaprio replying humorously about the translation of her words

Don says "The minute it looks like there's gonna be trouble, we gotta nip it; nip it in the bud!" And Andy laughs as he says it again

Four people are sitting and conversing. From top to bottom: Aidy Bryant, Bobby Moynihan, Vanessa Bayer, and Kate McKinnon. They discuss being clothed upon awakening

Four people in a comedic skit suppress laughter. Caption: "Look, it wasn't my worst Wednesday night." Another: "And how did the aliens return you all to Earth?"