Tommy Wiseau, the enigmatic creator of The Room – described as “the Citizen Kane of bad movies” – has unveiled the trailer for his follow-up, Big Shark, which Twitter is already turning into a source of deep merriment.

The new film, which appears to be about a big shark, stars Wiseau alongside his best friend and Room collaborator Greg Sestero, as well as Isaiah LaBorde. They play three firefighters who must save New Orleans from said big shark.

In the trailer, two women loudly slap Sestero’s character Georgie before the three men, drunk, walk home.

“Water, look at that,” intones Wiseau as the road they are walking down floods up to their waists and the big shark begins to circle.

The film – whose trailer has been described as “preposterous”, “outrageous” and “completely crazy” – is already promising to be quotable.

The trailer ends with five seconds of oddly performative strangled screams, and has been shared online a week after it premiered ahead of a screening of The Room in London.

One guest, writing for Film Futter, described the trailer as “so unexpected and weird that my colleague and I both briefly wondered if we had any hallucinogenic drugs added to our beer before”.

Although the trailer suggests some of the film has already been shot, Wiseau reportedly told the audience in London he intends on shooting and premiering it in 2019.

Doubts have already been cast on whether the film will ever make it, with entertainment reporter Germain Lussier claiming it is “mostly a joke and probably not going to happen … they aren’t planning on making it a movie”.

Sestero also starred in The Room, the 2003 film often described as the “worst movie ever”, and which Wiseau directed, wrote, starred in, produced and somehow also financed.

After its release, Sestero told the near-unbelievable tale of the film’s making in his book, The Disaster Artist: My Life Inside The Room, The Greatest Bad Movie Ever Made.

In 2017, the book was turned into a Golden Globe-winning movie by James Franco. Franco played Wiseau, his brother Dave Franco played Mark, and Sestero and Wiseau themselves also made cameos.

If Big Shark does eventuate, it will be Wiseau’s first feature film since The Room, which continues to be both ridiculed and loved in equal measure.

While the jury is still out on whether Wiseau is in on the joke, he doesn’t appear too hard done by. He tweeted out a poster of Big Shark on Tuesday, along with a link to his online store, which sells Tommy Wiseau-branded merchandise including underwear, watches, clothes and a “dogeee toy”.

He also tweeted a cult-favourite quote from The Room: “What a story Mark.”