Journey to the Beginning of Time (Czech: Cesta do pravěku, literally "Journey into prehistory") is a 1955 Czechoslovak science fiction adventure directed by Karel Zeman. Produced in color using a combination of 2-D and 3-D models, the film uses a documentary style to show extinct animal species behaving naturally in their own environments. It was the first of Zeman's productions to include actors in conjunction with stop-motion and special effects. It won awards at the International Film Festivals of Venice and Mannheim.

In 1966, Cesta do pravěku was dubbed into English and partly re-filmed, creating the US version, Journey to the Beginning of Time.