What's the largest beast depicted on film?

The new epic Godzilla trailer showed the monster stomping through San Francisco, seemingly as tall as the 779-foot Bank of America building in that city. This is significantly larger than the earlier Godzillas, about 100m (330 feet) during the 1990s Heisei movie series.

I was trying to think of the largest monsters on film. Gamera and Godzilla’s foes were roughly the same size each other in their movies. Wiki says Cloverfield was 25 stories tall, and I’ve read the Category V Pacific Rim kaiju was around 600 ft.

What would be the biggest animal to be shown in film?

My nomination: The space slug in Empire Strikes Back, big enough where the entire Millennium Falcon could fit between its teeth.

Do trees count? If so, the giant tree-habitat from Avatar (the blue aliens, not the martial arty dancing) would likely be up there also.

I take it we’re limiting ourselves to biological self-contained entities and not cosmic lifeforms like Galactus as depicted (sort-of) in that Fantastic Four movie.

How about robots? Unicron was a planet-devouring planet that transformed into a giant robot.

Well, there was the 11,000 mile wide amoeba in Star Trek’s “Immunity Syndrome” episode, season 2.

I don’t know if it’s nautical or statute miles in case there’s a face off with another ginormous creature.

There was the one in Woody Allen’s Everything You Always Wanted to Know About Sex But Were Afraid to Ask.

Oh wait, that was the largest breast.

I haven’t seen it, but apparently the 2006 version of Terry Pratchett’s Hogfather has a shot of Great A’tuin, the planet-bearing turtle. He/she must be pretty big.

Did they ever discuss the size of the Crystalline Entity in TNG? That thing looked pretty huge.

John Holmes?

Well, there’s Colossus, the Cosmic Giant, who had a single appearance on the Super Friends cartoon. The Earth was marble-sized to him, making him… I dunno… a million miles tall?

Reviewing the evidence, it looks like Ghidorah for the win.

cite cite cite cite cite cite cite

There’s that worm thing from The Empire Strikes Back. Before reading this thread, I would have guessed that was the biggest. Now I feel so inadequate.

The planet in Solaris was a single, sentient organism, wasn’t it?

Likewise, Mogo, the Living Planet from the Green Lantern comics has shown up in a couple of DC cartoons.

Slightly smaller scale, but there was an episode of Farscape that took place in a mining colony on the corpse of some titanic space lizard.

Solaris, definitely. Only the creature in Jack McDivitt’s Cauldron was bigger.

Bigger than Fred Hoyle’s Black Cloud?

Or the universe? I’ve run across some living universes in fiction.

Besides, it’s hard to get bigger than the creature at the end of Men In Black.

Heck, by that standard, Adam West and Rob Lowe are even bigger.

Beast. Not breast.
Never mind.

Among those planet-bound, the worms of Dune (1,000 long in the movie but can reach a mile in length.)

Dang, Der Trihs beat me to it.

Though if we’re considering all fiction, not just movies, the all-time champ, not likely to ever be dethroned, is the creatures at the beginning of the classic SF short story “He Who Shrank”, by Henry Hasse.