https://www.imdb.com/title/tt0057970/?ref_=nv_sr_srsg_0
A newlywed sheriff tries to stop a shambling monster that has emerged from a spaceship to eat the citizens of an American town.
https://www.imdb.com/title/tt0052611/?ref_=nv_sr_srsg_0
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur that threatens London.