20 Most Popular 1/2 Star Rated Movies From The 1950s

[claws]

Criteria: rating between 3,5 and 3,9 (IMDb)
Ranking by number of votes (IMDb)

5 Stars = Perfect 5/5
4 1/2 Stars = Excellent 4.5/5
4 Stars = Great 4/5
3 1/2 Stars = Very Good 3.5/5
3 Stars = Good 3/5
2 1/2 Stars = Flawed but Worthy 2.5/5
2 Stars = Fair 2/5
1 1/2 Stars = Barely Sufficient 1.5/5
1 Star = Poor 1/5
1/2 Star = Very Poor 0.5/5
0 Stars = Awful 0/5

[claws]

Seen three. Almost bought Monster from Green Hell (1957) as it was prominently advertised as so-bad-so-good from the mail order company I used in the 90s.
We rented The Beast with a Million Eyes (1955) and The Screaming Skull (1958) from a US video store while on vacation in Italy inside an US military base near Livorno and Pisa. We brought along our own NTSC VCR because we knew beforehand that we could rent American VHS releases there.

[Trevor]

My Dad told me about The Conqueror and about the cancer related deaths that happened after it: 

[RCMerchant]

Never seen the CONQUEROR or the GUNSLINGER.

[Rev. Powell]

Two on their own, another 9 via MST3K/Film Crew.

[bob]

Attack of the Giant Leeches, Gunslinger, Teenagers from Outer Space 

I legitimently like The Conqueror

Night of the Ghouls should be lower

[ER]

I haven't seen any, including Jail Bait, though I did once play that role.