Avengers: Doomsday Drone Show Lit Up Seoul: 2,000 Drones, Thanos Morphing Into Doctor Doom

Marvel turned Seoul's night sky into a comic-book page on Halloween night. Two thousand glowing drones rose over the Han River and drew Thanos, Infinity Gauntlet and all — then melted him into Iron Man, and finally into Robert Downey Jr.'s Doctor Doom. It was the biggest Han River drone show the city has ever staged, and every formation was for one film: Avengers: Doomsday.

Quick facts first

The moment everyone is talking about: Thanos into Iron Man into Doctor Doom

Of everything the 2,000 drones drew in the sky, one transition stole the show. It started with Thanos — huge, glowing, Infinity Gauntlet raised — as Josh Brolin's "I am inevitable" line played over the river. Then the drones shifted, the music changed to Brian Tyler's Iron Man 3 theme, and Robert Downey Jr.'s face emerged from under the Iron Man mask. And just as the crowd settled into that nostalgia, Iron Man faded away and a new shape took form: Doctor Doom, the very character Downey Jr. plays in the upcoming film.

It is a neat bit of storytelling for anyone who has followed Downey Jr. through the MCU. The villain who defined the last Avengers era gives way to the hero who defeated him, and the hero then gives way to the new villain. FandomWire called it a tribute to Downey Jr.'s whole Marvel journey — from Tony Stark's final sacrifice against the Mad Titan to his return as the franchise's next big bad. Honest note: the moment-by-moment descriptions here come from press reports and fan footage of the night, since Marvel has not yet released official clips of the performance.

How the night actually played out

The show was titled "Marvel Special", and it doubled as the final Han River drone performance of the year — the city ended its 2026 series with its biggest show yet. Besides the headliners, the drones also formed Thor, Doctor Strange, Iron Man and Doctor Doom in other sequences, with reports of Vision and Scarlet Witch appearances as well. The music came through a professional sound system supplied through a partnership with HARMAN International and JBL Professional, which was also a sponsor of the evening.

The drones were only half the plan. Long before the 8:30 PM show, the park ran a full Halloween celebration around the film:

• A photo zone built around Doctor Doom's throne and stained-glass imagery, pulled straight from the film's look.
• A social-media photo event from noon to 7 PM, with Marvel merchandise for the first 1,000 eligible participants.
• A costume parade with fans dressed as Marvel characters, plus event booths and discount coupons on the Baemin food-delivery app.
• A farmers' market near Jayang Station selling produce from across the country.
• Extra safety personnel and added subway service near the venue, because the city was expecting Halloween crowds.

Watch: the official Seoul City livestream of the 2,000-drone "Marvel Special" show over the Han River. Video: Seoul Metropolitan Government (YouTube).

Earlier that day: Marvel Run Korea turned a race track into the MCU

Seoul's night show was the headline, but the day started hours earlier in the mountains. Marvel Run Korea 2026 took over Inje Speedium in Gangwon for the run's 10th anniversary, with three courses: a 10-kilometre full circuit, a 5-kilometre action race, and a 2.3-kilometre family race.

The tracks were dressed with touches inspired by the film — Doctor Doom, Captain America and Thor motifs along the course — while a live DJ played original Marvel soundtracks. Finishers collected limited-edition medals built around Marvel characters and items, and the first 1,000 runners who joined the social-media campaign picked up a free keychain. The day also included a Formula E experience booth, marking Disney+'s entry as the series' global streaming platform from next season. Disney Korea says the celebrations continue with a "Marvel Virtual Run" through November.

Robert Downey Jr. got into the Halloween spirit too

Downey Jr. marked Halloween with his own post: a cartoon-style drawing of Doctor Doom going trick-or-treating. Doom stands at a doorstep in his green hood and metal mask, joined by three hooded Latverian Witches in lime green, purple and yellow, each holding a candy bag. The punchline is pure Peanuts: an orange rocky hand — obviously the Thing's — holds out a bowl of candy, and Doom grumbles, "I got a rock." It is a fun nod that also reminds fans Ebon Moss-Bachrach's Ben Grimm is part of Doomsday's cast.

It is a rare light moment in a campaign that has mostly stayed dark and secretive — the Russo brothers' style is to keep details locked down, so every new image gets fans talking. And the witches are not just a Halloween joke: they also appear on a brand-new ScreenX poster, with Doctor Doom surrounded by his mysterious coven. A separate 4DX poster goes the other way entirely — just Doom in his black and green, no heroes at all. That is a bold call for a film packed with Avengers and X-Men, and it says where Marvel thinks the selling power sits.

Who are the witches? That is still unconfirmed. Fan theories floating around name Scarlet Witch, Clea or Sylvie; others think they could be brand-new characters. Their costumes were first revealed at San Diego Comic-Con in July, and Marvel has said nothing about the casting behind the masks. File this one under "wait and watch".

Why Seoul got the biggest show of all

Korea is not just another stop on the marketing tour — it gets the film first. Avengers: Doomsday makes its global premiere in Korea and Britain on December 16, two days before North America. And the Han River drone series is a proven crowd machine: it launched in 2023 as part of Seoul's push to turn the river into a nighttime attraction, and through October 9 this year it had drawn about 197,000 spectators across 7 shows — an average of roughly 28,000 a night, up from 11,000 when the series began. Card sales in nearby business districts rise on show nights, so the city has every reason to go big.

Disney Korea knows the format well. A Star Wars-themed show with 2,000 drones took place at Jamsil Hangang Park on May 5 for Children's Day, and the 2025 series featured a "KPop Demon Hunters" performance. The Marvel Special simply took the biggest version of the format and pointed it at the biggest film of the winter.

What this tells us about the Doomsday campaign

Step back and the pattern is clear: this is a campaign about one man. More than 25 posters have surfaced, most of them built around Doom, with taglines like "Doom Has No Rivals" and "Doom Does Not Beg". The format-specific posters — ScreenX, 4DX, Fandango, RealD 3D — each sell a different way of watching, and Disney even created "Infinity Vision", its own premium large-format certification, after Warner Bros. locked down IMAX screens for Dune: Part Three's first three weeks. AMC is hosting a RealD 3D fan event on December 20 with collectible glasses, and trade reports had the film past $40 million in domestic presales 100 days out.

With about seven weeks to go, expect more stunts like Seoul's. The film opens December 18 — just six days before Shah Rukh Khan's King lands on Christmas Eve, a clash Bollywood is already pricing in (King's overseas rights just went for a record Rs 175 crore). And if you want the numbers side of the Doomsday story, our Dunesday presales breakdown tracks how it is running against Dune: Part Three. Marvel's Halloween message to Seoul was simple: Doom is coming, and he is coming big.