Reptilicus (1961)

A portion of the tail of a prehistoric reptile is discovered in Denmark. It regenerates into the entire reptile, which proceeds to destroy buildings and property and generally make a nuisance of itself. It can fly, swim, and walk, and has impenetrable scales, which makes it difficult to kill.
Sidney W. Pink, Poul Bang
Bent Mejding, Asbjørn Andersen, Povl Wöldike, Ann Smyrner, Mimi Heinrich, Dirch Passer, Marlies Behrens, Carl Ottosen, Ole Wisborg, Birthe Wilke, Bodil Miller, Mogens Brandt, Kjeld Petersen, Alex Suhr, Alfred Wilken, Bent Vejlby, Knud Hallest, Benny Juhlin, Martin Stander, Børge Møller Grimstrup, Hardy Jensen, Poul Thomsen, Svend Johansen, Jørgen Blaksted, Claus Toksvig
tt0056405