Is Frankenstein Horror, Zombie/Undead or Science Fiction?
The 1931 version of Frankenstein is listed by the IMdb as Horror, Scifi. Most every mention of Frankenstein lists Horror as the first genre. Now I know that there is a horror element to the story but to me, Frankenstein is hands down Science Fiction.
The whole concept is of a scientist reanimating dead tissue. Not only is it done in a laboratory with electricity, the animated patchwork man is unable to be re-killed. To me that is Science Fiction.
(yes, I know fire is used to stop him)