Lava is a 7-minute Pixar animated short that plays before Inside Out in theaters and is available on Disney+. It tells the story of Uku, a lonely volcano in the Pacific Ocean who sings a melancholic love song for millions of years, hoping to find another volcano to "lava." Just as he's about to sink into the ocean, a female volcano named Lele rises from the sea, having heard his song all along.
The whole thing is set to an original ukulele song that's honestly going to live rent-free in your head for weeks after watching. Fair warning.
If your family has watched Inside Out on Disney+ (and based on our community data, about 80% of families are using either Disney+ or Netflix), your kids have probably encountered Lava. It auto-plays before the movie, which means it's become part of the Inside Out experience for a whole generation of kids.
The song is incredibly catchy, and younger kids especially love the simple, repetitive lyrics and the gentle Hawaiian-inspired melody. It's also genuinely beautiful to look at—Pixar's animation of the ocean, sunsets, and volcanic landscapes is stunning even in just seven minutes.
It's Genuinely Sweet (But Also Kind of Sad)
This isn't your typical silly Pixar short. Lava deals with themes of loneliness, longing, and patience—heavy stuff wrapped in a gentle package. Uku sings about being alone for millions of years, watching other creatures find companionship while he remains isolated. Some sensitive kids (especially in the 4-7 age range) might find this genuinely sad, even though it has a happy ending.
The payoff is beautiful—Lele has been underwater the whole time, listening to Uku's song and rising to meet him—but you're essentially watching a volcano experience depression for most of the runtime.
The Song Will Absolutely Get Stuck in Your Head
"I have a dream I hope will come true, that you're here with me and I'm here with you..." Look, I'm sorry, but you're going to be humming this at random moments for the foreseeable future. The good news? It's actually a lovely song. The less good news? Your 5-year-old will sing it on repeat for three weeks straight.
It's a Love Story (Keep That in Mind for Younger Kids)
Lava is fundamentally a romance, which is fine, but might spark questions from younger viewers who are still in the "love is gross" phase. The volcanoes don't kiss or anything—this is very G-rated—but the whole premise is about romantic longing and finding a soulmate.
For kids under 6, they might not fully grasp the romantic angle and just see it as a story about friendship, which honestly works too.
Ages 3-5: They'll love the music and colorful visuals, but the emotional weight might go over their heads (which is probably fine). Some might get sad when Uku is alone, so be ready for questions about why he's sad and reassurance that it ends happily.
Ages 6-9: This is probably the sweet spot. Old enough to understand the story, young enough to find it genuinely touching without overthinking it. Great conversation starter about patience, hope, and how sometimes good things take time.
Ages 10+: Tweens might find it a bit babyish or overly sentimental, but the animation quality and musical craftsmanship can still appeal. Some kids this age actually appreciate the metaphor of someone being there all along, even when you couldn't see them.
Emotional intensity: Moderate. The sadness is real but not traumatic. No scary moments, no conflict beyond loneliness.
Scary factor: Zero. This is about as gentle as content gets.
Messages about relationships: Actually pretty healthy! The story shows patience, hope, and the idea that love can come when you're authentic and true to yourself. Lele rises to meet Uku because she's been moved by his genuine expression, not because he changed himself or performed masculinity.
Lava is a beautiful, melancholic, ultimately hopeful short film that your kids are probably going to encounter anyway if they watch Inside Out. It's appropriate for pretty much all ages, though the emotional themes might resonate differently depending on your child's age and sensitivity.
The main "risk" here is fielding questions about loneliness and love, plus having the song stuck in your head forever. But as far as content concerns go, this is about as wholesome as it gets. It's a genuinely artistic piece that treats big emotions with respect—something we could use more of in kids' content.
Pro tip: If your kids get really into it, there's a behind-the-scenes feature on Disney+ about how the short was made, which is fascinating if you have budding animators or musicians in the house.
If your family enjoys Lava, you might also appreciate other Pixar shorts like Piper (about a baby sandpiper learning to overcome fear) or Bao (about a mother and her dumpling son—yes, really). Disney+ has a whole collection of Pixar shorts
that range from silly to deeply emotional.
And if you want to understand what your family's streaming habits look like compared to others in your community, Screenwise can help you map that out and figure out what's working (and what might need adjusting) for your specific family.