OGL vs. D3D - Which does which paradigms?

So...I know I'm opening of can of worms here, but it's fun...

OpenGL or Direct3D? What paradigms do each follow? D3D is there for us gamers, but can high-level modelers swear to use it for rendering effects in movies and such?

On a related note, does anyone have any recommendations for books on DirectX (in general, not just D3D) for someone whose had MFC and OpenGL experience?

typedef struct {
    int property;
    int myMethod(wchar_t *);
} MyClass;

...

MyClass obj = MyClass_Create();

obj.myMethod(L"LOOK MOM ITS OO LOL LOL");[/code]