*Disclaimer: excuse rather poor English. I tried to search for "The Thing" in forums, nothing came up in first pages of search results, but maybe this similarity has been pointed before*
Has anyone seen the film "The Thing" (released 1982)?
Nice short review on Youtube:
part 1
part 2
Basically there is an alien lifeform found by the Norwegian research team frozen/in_hibernated_state in Antarctic for thousands of years. It is capable of imitating (perfect replica on the outside. Don't know what happens to victims memory) other life-forms, can grow to monstrous size by consuming flesh (humans, dogs, etc...), has better memory than humans, is probably on-par with human intelligence (maybe even smarter - just unfamiliar with human race).
There are some notable differences however:
it came to earth with spaceship
it can't control healthy human's mind (can Jenova do that?)
doesn't levitate things