UNKNOWN TERROR 1957 (SINISTER CINEMA)

One of my favorite films from the 50's because it is so damn strange! Several explorers go to a small jungle in South America in hopes of finding a lost explorer still alive. The caves they enter are full of mysterious mold monsters that were once natives, but now monsters thanks to an evil doctor who is experimenting with molds and such.
John Howard and Paul Richards are the two male members of the expidition and the always sexy Mala Powers is Howard's wife, and it is her brother that they are searching for. Gerald Milton is the evil doctor and lovely May Wynn is his native wife.
The monsters are interesting looking and the slime and mold looks like soap suds, which they probably are. This is what movies should be, no heavy message, no CGI, no cross marketing...just plain fun, which this is from beginning to end.