All Too Well: The Short Film is a 2021 musical romantic drama short film written and directed by the American singer-songwriter Taylor Swift in her filmmaking debut. A film adaptation of her critically-acclaimed song "All Too Well" (2012), it is set against the backdrop of the uncut, 10-minute version of the song released in 2021. It stars Sadie Sink and Dylan O'Brien as a romantic couple whose up-and-down relationship ultimately falls apart, compounded by their age gap. Swift cited the works of Barbara Stanwyck, John Cassavetes, and Noah Baumbach as artistic influences upon the film.

Produced by Saul Projects and Taylor Swift Productions, All Too Well: The Short Film was released on November 12, 2021, in select theaters by Universal Pictures and on YouTube by UMG's PolyGram Entertainment and Republic Records, in conjunction with Swift's second re-recorded album, Red (Taylor's Version). After a premiere at the AMC Theatres in Lincoln Square, New York City, it had a limited theatrical release in major cities as well as special screenings at the 2022 Tribeca and Toronto film festivals. It received critical acclaim, with particular praise directed towards Swift's direction as a debut filmmaker as well as the acting, script, drama, and production values.

The film garnered several awards and nominations from music and film organizations, including an American Music Award, a Hollywood Critics Association Award, an Art Directors Guild Award and a Grammy Award for Best Music Video; at the 2022 MTV Video Music Awards, it won Video of the Year and Best Direction, making Swift the first artist in VMA history to win Best Direction for a self-directed work.

All Too Well: The Short Film is a film adaptation of the 10-minute version of the song "All Too Well" by the American singer-songwriter Taylor Swift. It also functions as a music video for the song. A literary quote from the Chilean poet Pablo Neruda—"Love is so short, forgetting is so long", from his poem "Puedo Escribir Los Versos"—opens the film. The story chronicles the relationship of two doomed lovers, Her and Him, compounded by an age gap. "All Too Well (10 Minute Version)" plays throughout the film, except during a dialogued conflict between Her and Him. The song details a blooming romance between two people and its subsequent dissolution and resulting heartbreak. The nearly 15-minute film is divided into seven chapters—"An Upstate Escape", "The First Crack in the Glass", "Are You Real?", "The Breaking Point", "The Reeling", "The Remembering", and the epilogue "Thirteen Years Gone"—describing the relationship between Her and Him through various phases.

The story starts with the couple lying in bed together, Her (Sadie Sink) mesmerized by Him (Dylan O'Brien). They venture into upstate New York in a car. Her leaves her red scarf at a house belonging to Him's sister. Their relationship takes a turn at a dinner party, where Him ignores his girlfriend with a hand gesture, as he is busy catching up with his friends, making Her uncomfortable. They fight afterwards; Him is arrogant and dismissive, while a distraught Her is heartbroken but still wants to stay with Him. He apologizes and kisses Her to end the argument, and they dance in the refrigerator light. Him starts to distance himself from Her, eventually breaking up with her. A devastated Her weeps in bed, ignoring his phone calls. Her is seen typing on her typewriter and crumpling paper sheets. A montage shows Her alone at parties and sorrowful on her 21st birthday. Him's life carries on as he walks alone down a Brooklyn street, recalling some of the happier moments in his relationship with Her. The film then jumps 13 years into the future, where Her (Taylor Swift) has become an author and released her book All Too Well, presumably detailing the heartache she went through with Him. She reads from the book to an audience in a packed bookstore. Outside the store, an older Him stands in the snow, watching Her through the window, wearing the same scarf she left behind 13 years ago.

Swift stated via her social media that All Too Well: The Short Film was shot on 35 mm film by Japanese-Korean-British cinematographer Rina Yang. Yang used an "Arri Arriflex 235 for handheld and steadicam, and Panavision MXL for dolly work"; lenses were Panavision Primo, with 11:1 Primo zoom. She shot exterior scenes on Kodak Ektachrome—the same kind she had used to shoot the HBO television series Euphoria. Swift cited "Barbara Stanwyck films, particularly 1937's Stella Dallas", as artistic influences upon her film in addition to those of John Cassavetes and Noah Baumbach, especially his drama film Marriage Story (2019), among other works. She also mentioned the films The Way We Were (1973), Love Story (1970), and Kramer vs. Kramer (1979) as sources of inspiration.

Swift said she wanted tell a story about "girlhood calcifying into this bruised adulthood" with the film. On Late Night with Seth Meyers, she said she cast Sink and O'Brien because they were the only two people she imagined playing the roles, noting that she was a fan of O'Brien's works and that she would not have proceeded with making the film had Sink turned down the offer. Swift explained that she likes "working with friends or people who I think would be excited about working with me" and added that she was "just blown away by what [Sink and O'Brien] did—they went out and left it all on the field". Sink stated she accepted Swift's offer without hesitation as she was a fan of Swift and was also interested in playing a "more rounded and mature" role while portraying her Stranger Things character Max Mayfield during production of the series' fourth season. Stranger Things director Shawn Levy makes a cameo appearance as the father of Sink's character in the short film. Swift further revealed that Sink and O'Brien "were so electric and [improvising] a lot of what they were doing that we just couldn't take the camera off [them]". At the end of the film, Swift played an older version of Sink's character.

In June 2021, Swift announced that her re-recorded album, Red (Taylor's Version), a re-recording of her fourth studio album Red (2012), would be released on November 19, 2021; the release date was later moved up to November 12. It contains both the re-recorded version of the track "All Too Well" and its 10-minute uncut version as a bonus track "from the vault". On November 5, 2021, Good Morning America revealed a teaser for the short film. The teaser featured a vintage car driving down on a quiet road surrounded by autumnal trees, as well as the names of the cast members. All Too Well: The Short Film is a dramatized account of the incidents and dynamics of the relationship described in the song. It is about "an effervescent, curious young woman who ends up completely out of her depth", stated Swift. She described it as an expression of her gratitude to her fans for their reception to the song "All Too Well" over the years.