From Cinelinx:
Someone is embarrassed this week. Shanghai Cinemas in China accidentally used a photo-shopped fan-made poster for Thor: the Dark World, instead of the official poster. The erroneous poster is a shippers delight, showing the mighty Thor (Chris Hemsworth) and Loki (Tom Hiddleston) in a romantic pose.
We still don't know what will become of Fat Thor in Thor: Love and Thunder, but PETA has the perfect idea on how to make the God of Thunder buff again.
DBC: “Thor: The Dark World is Jane Foster’s movie. The film finds in Jane both narrative potential and recognition that Thor isn’t all that interesting by himself. And with Thor: Love and Thunder putting the hammer in her hand and the winged helm on her head, it’s difficult to ignore The Dark World because it’s now difficult to ignore Jane Foster. It’s the Natalie Portman show, and problems arise whenever or wherever the film forgets or ignores that.”
WGTC: "Christopher Markus and Stephen McFeely talk about how they approached time travelling back to Thor: The Dark World in Avengers: Endgame."
This has to be one of the funniest marketing gaffs (official anyway) I've seen. Just priceless.