There’s going to be a “Titanic: 20th Anniversary” documentary, and our hearts will go on for this

Throw on some Celine Dion and do your very best “I’m King of the World” impression, because there’s a new Titanic documentary heading to National Geographic, and we’re already so, so excited.

The one-hour special, Titanic: 20th Anniversary, will celebrate the 1997 release of the epic, forever gut-wrenching film, which turned Leo and Kate into household names.

The film’s writer and director James Cameron will be on hand for the documentary, to look back on his time making the classic.

Not to mention, he’ll retroactively explore just how closely he nailed the historical details.

“When I wrote the film, and when I set out to direct it, I wanted every detail to be as accurate as I could make it, and every harrowing moment of the ship’s final hours accounted for, Cameron said in a statement. “I was creating a living history; I had to get it right out of respect for the many who died and for their legacy. But did I really get it right? Now, with National Geographic and with the latest research, science and technology, I’m going to reassess.

Cameron’s admirably obsessive attention to detail has been well documented in the past — including, back in 2012, when he digitally altered the sky in the sinking ship scene for Titanic 3D, after astrophysicist Neil deGrasse Tyson informed him that the star map was incorrect.

Oh, and he had very specific ideas when it came to set pieces as well.

“Cameron wanted real wallpaper and things like that,” Fred Gallo, head of physical production at Paramount Pictures, told The Hollywood Reporter of the making of the original. “I said, ‘Why don’t you build the sets and have them paint on the wallpaper? No one will ever know.’ He wanted a special submarine, and there was only one in the world. It was Russian and he had to have it.”

That’s true, true commitment right there.

Cameron’s documentary hits National Geographic in December so — if your heart can take it — that’s ample time for a Titanic re-watch session.