In THE THING WITH TWO HEADS, Ray Milland (X: THE MAN WITH THE X-RAY EYES, FROGS) is Maxwell Kirshner, the irascible, bigoted head of the Kirshner Transplant Foundation. Arthritis has destroyed Kirshner's body, and he's contracted terminal cancer, so he comes up with a brilliant, novel plan to escape his ancient, dying frame. Indeed, he decides to transplant his dome onto a physically healthier body. His animal trials have already gone quite well.
WARNING: Contains The Hideous, Two-Headed Go-rilla Running Amok Sequence!
The question becomes, who would volunteer for such a procedure? Well, thanks to the penal system, a death-row convict is quickly supplied. Enter Jack Moss (Roosevelt "Rosey" Grier). Of course, Kirshner knows nothing about the body he is about to be grafted to. The surgery is performed.
WARNING: Contains The Nearly Lifelike, Rubber Kirshner And Moss Heads!
Let the hilarity begin! A perfectly preposterous film that could only have been made in the 1970's, it does have something to say about racism. It's schlock content is astronomical, and if it weren't for Milland and Grier, all would surely have been lost. They are magic together, in an Archie Bunker sewn onto George Jefferson sort of way.
Ultimately, the movie devolves into a typical series of chase scenes. Well, typical for a two-headed man movie! Watch for the dirt bike rally! Also, for added fun, try to count the number of police cruisers that are destroyed!
A credit to its sub-genre...