Five Million Years To Earth (1967)

Starring James Donald, Andrew Keir, Barbara Shelley, Julian Glover, Duncan Lamont
Directed by Roy Ward Baker
(actor & director credits courtesy IMDB.com)

When an underground excavation in London unearths a large metal object, authorities conclude it's an old German bomb, but rocket scientist Professor Quatermass believes it's an ancient spaceship.

The third adaptation produced by Hammer Films of Nigel Kneale's Quatermass television serials, this one was filmed a decade after the first and features more advanced special effects, although they still show their age.  The emphasis however is still on Kneale's ideas, including the possibility that ancient aliens became the basis for the concept of the devil in early civilizations.  The film's first half does a superb job of unveiling those ideas in a number of suspenseful sequences, but loses a bit of energy in its second half, perhaps due to the difficulty of condensing the lengthy serial story down to two hours.  Nonetheless, it's still an entertaining sci-fi adventure.

Daleks' Invasion Earth: 2150 A.D. (1966)

Starring Peter Cushing, Bernard Cribbins, Ray Brooks, Andrew Keir, Roberta Tovey
Directed by Gordon Flemyng
(actor & director credits courtesy IMDB.com)

The eccentric but brilliant Doctor Who travels forward in time with his companions to 22nd century Earth, where he discovers London has been destroyed by his old nemesis, the Daleks.

What a fun movie!  I can't say I've been a fan of the long-running Doctor Who television series, which per Wikipedia, provided the storyline adapted into this film's screenplay, but certainly enjoyed spending an evening with the good doctor, well-personified by Peter Cushing in one of his two turns in the role.  The whimsical music score from Bill McGuffie is very enjoyable, deflating some of the horrific impact of the plot, and along with some comedic bits of business, helps to make the film suitable for family audiences.  Viewers of the television series, accustomed to its very limited special effects, will enjoy seeing much more substantial sci-fi imagery here, although the filmmakers stay true to the series' simplistic design of the ruthless Daleks.

Dracula: Prince Of Darkness (1966)

Starring Christopher Lee, Barbara Shelley, Andrew Keir, Francis Matthews, Suzan Farmer
Directed by Terence Fisher
(actor & director credits courtesy IMDB.com)

After perishing in the sunlight, Dracula's ashes are kept by his faithful servant and ten years later, he lures two vacationing couples to Dracula's castle to resurrect the Count.

This was the second sequel to Hammer Films' 1958 hit Horror Of Dracula, but the first to feature Christopher Lee reprising his role as the undead count, who strangely has no dialogue in the film, but nevertheless turns in a memorable animal-like performance.  Director Terence Fisher, who helmed both of the previous films, returns, and delivers another atmospheric vampire tale with horror effectively built through deadly quiet sequences on the soundtrack and suspenseful pacing.  And behind the scenes, the excellent Hammer production crew contribute strong work in the areas of production design, music, and costuming.