The Monster that Challenged the World (1957)

Fifties monster movies, I theoretically love you...but sometimes, you're just not bad enough (or good enough) to deserve my love.

The Good:
This is a movie about Giant Bloodsucking Atomic Snails who -to my surprise- don't even look too shabby on screen, but (and this leads directly to)

The Bad:
there's way too little to see of them or their nefarious world challenging acts of sucking half a dozen Americans dry. Instead, we're treated to long, tedious and earnest hours of long, tedious and earnest search for the monsters' lair, a tedious and earnest love story I don't want to think about too long and some choice bits of unfunny humor.

TmtCtW's problem is a bad case of mediocrity: There is not enough sense of style, drama and creepiness to make it as classic as Them, but also not enough ineptness to lead to the idiotic bliss of something like The Giant Claw. It just kind of sits there and looks at you earnestly, promising Giant Bloodsucking Atomic Snails!