The Thing (Original & Prequel)
I was looking for the thread to the 2011 movie since I could have sworn it was made but every time I searched I came up with nothing.
http://s17.postimg.org/lj283opjj/screenshot_281.jpg
Anyway I just recently checked out the prequel on blu-ray and while it doesn't live up to the John Carpenter 82' movie I still found it to a worthwhile prologue to Carpenter's film. My enjoyment mostly came out of having a bigger picture of the whole ordeal which gives the 82' Thing an extra layer of context when we see the destroyed camp again. Granted, the movie has an abundance of dodgy CG where it really should have used more practical effects and the characters aren't as well developed as the Carpenter film but the alien and it's circumstances gets more detail.
On the other hand I found it strange to see how advanced the ship for a parasite was unless the ship was taken over by it prior to crash landing on earth but in both movies it's consistent in showing it trying to leave via technologically advanced ship. There's also a Thing videogame but I don't know if that was ever accepted as canon, however there have also been comics from Dark Horse that apparently show what happens after the 82' movie so I'm curious to actually read those.