the phantom from 10000 leagues (1955)

"Five people have died as a result of that thing!"
When radioactive bodies start washing up on the Californian coast, an army investigator (Rodney Bell) and scientist (Kent Taylor) start to look into what the cause might be.
Creature feature by numbers, done better almost everywhere else. With a monster that moves with the fluidity you would expect from a man swimming in a bulky costume, and about as terrifying as a child with a crayon!

from hell it came (1957)

"Science doesn't have all the answers yet."
A prince of a south seas tribe (Chester Hayes) is murdered, for fraternising with some American scientists, and is promptly reincarnated as Tabanga, a killer spirit (looking suspiciously like a walking tree trunk), to avenge himself on those that killed him. Ironically the native's only hope are the American scientists (Tod Andrews & Tina Carver) they are so suspicious of.
Another in a line of atomic creature features, this time with a mythical monster twist. A grade z-flick, enhanced with the addition of alcohol.