The Thing from Another World

The Thing from Another World was a film Shona McCullough planned to watch on DVD as part of her Christmas Day itinerary. (TV: Last Christmas) The film was directed by Howard Hawks, and according to the Eleventh Doctor featured a "walking carrot". The Doctor brought this film up when Amy asked if he'd seen The Thing, and he wasn't sure which version she meant—this one, or the "Carpenter, Kurt Russell Thing". (GAME: Blood of the Cybermen)

Behind the scenes
The "Howard Hawks Thing-y with the walking carrot", as the Doctor puts it in Blood of the Cybermen, is not explictly said to be titled The Thing from Another World, but this name is established in Last Christmas.

In the real world, Kurt Russell's The Thing was in fact inspired by this movie, and both share the same source material: the 1938 novella Who Goes There?.