The first coproduction between England's Hammer Films and American International Pictures is an appropriately lurid affair, with many heaving bosoms showing the telltale marks of Carmilla, the lesbian vampire. Not as arty as Roger Vadim's superior "Blood and Roses", this was a big enough hit in 1970 to spawn two pulchritudinous follow-ups, "Lust for a Vampire" and "Twins of Evil".