Wang kept shooting them in their home in San Francisco’s Bay Area, especially after he moved back in with his mother nearby during the coronavirus pandemic. They got accustomed to his camera being around. But they never thought it would lead to the Academy Awards.

Wai Po and Nai Nai, Wang’s deeply charming portrait of his grandmothers, has been nominated for best documentary short at the Academy Awards.

In it, Wang films Yi and Chang going about their daily lives with bits of playfulness mixed in. They arm wrestle. They play dress-up. They watch Superbad.

But mostly, Wai Po and Nai Nai – maternal grandmother and paternal grandmother in Mandarin, respectively – captures the joy of two spirited ladies in older age as they occasionally chide their grandson’s attempts to turn them into movie stars.

“When you first asked us to be movie stars, we were like, ‘This must be a joke,’” Chang says in a Zoom interview alongside Yi, with Wang joining from Los Angeles. “But now that we made this movie and it’s going to the Oscars, we do kind of feel like movie stars. Now that this whole experience has happened, we do feel a little prettier.”

When Oscar nominations were announced in January, it wasn’t Bradley Cooper’s or Emma Stone’s reactions that went viral. It was the celebration, caught on video, of Yi and Chang, with Wang, his mother, and producer Sam Davis standing over them.

In the film, which is streaming on Disney+, Yi and Chang reflect on mortality and the essential things in life.

“As long as I have the newspaper, I can live,” says Yi in the film, with magnifying glass in hand.

“Every day I open the newspaper and if I got to see you, that’d be amazing,” Yi tells Wang, who, after translating, shrugs: “I don’t think we’ve made it into the Taiwanese newspapers yet.”

Wang was inspired to make the movie during the pandemic, when Asian and Asian-American hate crimes were escalating. He saw his grandmothers as the perfect antidote to the hateful stereotyping that followed Covid-19.

At the same time, the short, which premiered in 2023 at the SXSW film festival, was meant to essentially just be a simple home movie.

“That’s kind of why we made this movie,” Wang says. “It’s just so we could have this recollection, this time capsule that captures the essence of these two women. Long after they’ve passed away, we can have some sort of memento to remember what their lives were like.”

Yi and Chang both grew up in poverty in wartime Taiwan. Their vivacious attitude (“Doesn’t matter if we know how to dance,” Chang says in the film. “We’ll shake our hips.”) is a conscious reaction to the hardship they’ve experienced.

In the film, Chang notes that days spent sad pass the same as those spent happy. “So I’m going to choose joy.”

“There was so much pain in our childhoods,” Chang says now, tearing up. “Our late lives are so much more fortunate than what we experienced when we were young. And then to be surrounded by our family, there’s so much more joy around us than when we were young.”

That includes Wang who, when not brightening the days of his grandmothers, has emerged as one of the breakthrough filmmakers of the year. At the same time that Wai Po and Nai Nai was landing its Oscar nomination, Wang’s feature-film directorial debut, Didi, was causing a sensation at the Sundance Film Festival.

At Sundance, Didi, a semi-autobiographical coming-of-age comedy about a teenage Taiwanese-American skater kid growing up in Los Angeles, won the US Dramatic Audience Award and Special Jury Award for best ensemble cast – one that includes Chang as the mother-in-law.

Focus Features acquired the film, the title of which in Mandarin means “little brother” or can be a term of endearment for a family’s youngest son.

“Surreal and bonkers,” Wang says of the twin successes. “To have these spotlights on global platforms for these stories that come from such a deep, personal place is bonkers.”

A through line for Wang in his rapidly unfolding filmography is family. An earlier short of his, 3,000 Miles, tenderly stitches together voicemails left by his mother while Wang was living in New York. It concludes sweetly in their reunion.

To Wang, his role as a filmmaker is to consider his strongest emotions – and more often than not, those feelings are connected to family.

“Making films about my family helps me bridge the gap in my life as a human – seeing my mom not just as my mom or my grandmother not just as my grandmother but as people,” Wang says. “I’m still learning to bridge that gap.”

Now Wang’s family life will converge, of all places, at the Academy Awards.

“We’re going to the Oscars and I’m going with my grandmas,” Wang says, smiling. “It’s just, like, a sentence I never thought I would say.”

For their part, Yi and Chang describe their feelings about attending the Oscars with their grandson in excited unison. “Wonderful! Wonderful!” they shout in English. Asked who they’re looking forward to meeting, Chang considers for a moment.

“Will [Taiwanese filmmaker] Ang Lee be there?” she says.

But amid their disbelief, Chang and Yi think there’s an important lesson to be found in the success of Wai Po and Nai Nai that doesn’t have to do with them, but in the grandson behind the camera – even if the film concludes with Chang cursing Wang as a “freakin’ brat”.

“I want people to realise, especially parents: don’t force your children to walk the path that you want them to walk,” Yi says. “Encourage them and support them in their interests, and be open to the paths that they’re naturally gravitating towards. Try to water those seeds.”

Yi and Chang have become famous enough that casting directors have reached out to Wang about featuring them in other movies. Wang recently relayed an audition offer to Chang for a film shooting in New York. She said she’d have to read the script first.

“They’re ‘offer-only’ [i.e. they won’t consider a role if they have to audition],” Wang says.