Attack Of The Giant Leeches (1959)

Starring Ken Clark, Yvette Vickers, Jan Shepard, Michael Emmet, Tyler McVey
Directed by Bernard L. Kowalski
(actor & director credits courtesy IMDB.com)

A backwoods community is shaken by the deaths of people attacked in the swamp by giant mutated leech monsters, but the local game warden gets no help in proving the creatures exist.

Roger Corman's brother Gene produced this effective picture which I don't think gets the respect it deserves, well photographed and directed in a unique setting for the genre, especially at the time it was made.  The creature design holds up pretty well, and their bloodsucking attacks on their victims while trapped are in an underwater cave are definitely unnerving, following a similar template as used in the Corman-produced Beast From Haunted Cave the same year.  The backwoods characters in the cast, while trading in on some familiar stereotypes, are anchored by Bruno VeSota's general store proprietor, who elicits sympathy as a man detested for his girth by his beautiful and philandering wife, played by Vickers.  They're joined by a capable supporting cast, and Leo Gordon's screenplay does a good job of illustrating the ethical dilemmas facing Clark's game warden while pressure mounts to stop the creatures before their next attack.

Attack Of The 50 Foot Woman (1958)

Starring Allison Hayes, William Hudson, Yvette Vickers, Roy Gordon, George Douglas
Directed by Nathan Hertz
(actor & director credits courtesy IMDB.com)

A wealthy socialite, mentally suffering due to alcoholism and a philandering husband, encounters an alien being who infects her with radiation that makes her grow to a tremendous size.

Probably better known for its iconic movie poster in which a gigantic bikini-clad Allison Hayes menaces a city she towers above than for the actual content of the movie itself, this film has achieved a pretty trashy reputation over the years, which it doesn't completely deserve, despite poor special effects and a fairly thin storyline.  Don't get me wrong- a giant woman in her underwear wreaking havoc on a city is fairly trashy, but that actually makes up a pretty small portion of the movie, and the rest I found enjoyable, whether you take the plot seriously or not.  Hayes gives a sympathetic performance, Ronald Stein's music score is a good one, and if you do check it out, even if you find it to be a terrible movie, I think you'll still stay tuned to see what happens.