Well CFTBL was 1954... and if he was experimented on, then making him grow giant & swallowing us is totally plausible!
As for AREA 51, back in 1997, Hollywood had a maze of the same name. "
Aliens in cold storage and running amok.
The government has been hiding grotesque alien lifeforms for years in this murky maze. This time they've busted from their test tubes and are roaming the dark corridors and virus infected rooms you'll be walking through. Bring your running shoes!"
It featured an alien ship, alien autopsy, alien morgue, medical containment holding room, hallway of alien corpse body bags, etc. Facade looked like CDC Quarantine Headquarters... I feel like this was really trying to capture the X-Files hype