Liquid I.V. is entering the Marvel Cinematic Universe, and it is doing so with more ambition than a logo on a cup.

The Unilever-owned hydration brand has signed on as the exclusive functional hydration partner of Sony Pictures’ Spider-Man: Brand New Day, which arrives in theaters July 31. The partnership spans product placement in the film, a national TV commercial, co-branded retail products, and a forthcoming fan experience, making it the brand’s largest entertainment collaboration to date.

A Sidekick Sells Hydration

The centerpiece of the campaign is a 30-second spot starring Jacob Batalon, who plays Ned Leeds, Peter Parker’s best friend. The creative choice is sharper than it first appears. The new film picks up after Spider-Man: No Way Home, which ended with Peter Parker erased from everyone’s memory, including Ned’s. Liquid I.V.’s ad leans directly into that unresolved storyline, showing Batalon walking down a New York sidewalk on a sweltering summer day.

By casting a character rather than a celebrity, the brand borrows narrative tension from the franchise itself. Fans arrive at the ad already invested in Ned’s arc, which in the new film includes an app built to track Spider-Man’s whereabouts. The commercial becomes an extension of the story world rather than an interruption of it.

Inside the Partnership

The retail component launched June 1 with two limited-edition products inspired by the hero’s red and blue suit. Hydration Multiplier Arctic Raspberry uses spirulina to achieve a bold blue hue, while a Sugar-Free Raspberry Lemonade covers the red side of the palette. The products are available on the brand’s site, Amazon, and shelves at Target, Walmart, CVS, Walgreens, Publix, Kroger, and Meijer.

The collaboration also carries a purpose layer. In partnership with Direct Relief and World Central Kitchen, Liquid I.V. committed to donating 500,000 stick packs to support disaster relief efforts and first responders, tying the superhero framing to real-world service.

Unilever’s Entertainment Ambition

For Liquid I.V., Spider-Man is not a one-off stunt but the latest step in a growing entertainment strategy. Chief media officer Aaron Jones has framed the partnership around thematic alignment, arguing that Spider-Man’s story of rising to meet the moment mirrors what the brand wants hydration to represent for everyday consumers.

That language matters because it reflects how sophisticated brands now evaluate entertainment deals. The question is no longer how many impressions a film can deliver, but whether the property’s emotional architecture can carry the brand’s positioning. Liquid I.V. sells functional performance in the moments that matter; a hero who shows up when needed is close to a category metaphor.

The Crowded Marquee

Liquid I.V. is not alone on this particular billboard. Samsung has built its own Brand New Day activation around the Spidey Tracker, an interactive fan experience lifted from the film’s plot, in which Ned develops the tracking app on a Galaxy device. Blockbusters have become platforms where multiple brands operate simultaneously, each claiming a different narrative thread.

For studios, the appeal is obvious: brand partners extend a film’s marketing reach with budgets the studio does not have to spend. For brands, the calculus is trickier. Standing out inside a franchise requires genuine integration, and the partnerships that work tend to be the ones woven into character and plot rather than pasted onto packaging.

What This Signals for Marketers

The Liquid I.V. deal illustrates a broader shift in how challenger-turned-mainstream brands buy attention. As traditional reach fragments, entertainment properties offer something rare: a mass audience arriving with emotional investment already built. The brands capitalizing on that are treating films the way they once treated media channels, with dedicated strategies, recurring investment, and creative built specifically for the property.

The risk is dilution. When every summer tentpole carries a dozen partners, integration quality becomes the differentiator. Liquid I.V.’s wager is that owning a specific character’s story beat, rather than the film’s general glow, is what audiences will remember when they pass the hydration aisle. If the bet pays off, expect the brand’s entertainment slate, and its competitors’ slates, to keep growing.