Two films I expect the fans here will easily identify the titles of which elude me, both 1970s horror, haven't seen in 30 years:
One is the story of a Vietnam vet who comes home a kind-of vampire, spends alot of time rocking in a rocking chair, is distant and creepy to his family, and kills people to transfuse their blood into himself . . . ?
Second, a film crew is working in an old estate or castle making a movie, murders happen, a zombie like dead guy is resurrected, kills everybody left, rescues the corpse of a beautiful nude girl floating in a stream on the estate and at the very end carries her back down into his own grave presumably for company. . .?
The first is probably Dead of Night aka Death Dream.
http://www.imdb.com/title/tt0068457/
DEAD OF NIGHT . . . that's it. Thank you Shadowfyre! It's a good low budgetter, but I haven't seen it in a very long time (but still remember it well!)
Now if only someone can come up with the second flick!
I agree on the identity of the first film.
Your second film is, quite possibly, "The House of Seven Corpses."
http://www.imdb.com/title/tt0071627/
The second one could also be "Ruby". It has a projectionist crew showing movies (almost a film crew), an old mansion, and a woman dragged into a lake at the end by a skeleton.
EDIT: Oh, I seem to have misread your description. You said he carries her to his GRAVE not back into the water. It probably isn't Ruby, then.
Just in case, here's a synopsis and screen caps to jog your memory:
http://www.coldfusionvideo.com/r/ruby.html
Thank you all for your input. The second film is HOUSE OF SEVEN CORPSES . . . I remember John Ireland was in it.
I'll third it as "The House of Seven Corpses." There are a couple of other well known names associated with the film: John Carradine and Faith Domerque.