1967/6: Journey to the Center of Time 1967

 Trailer:

 Watch movie:

https://youtu.be/jokp0fy2Zlo?si=cAP01QrkDWInKfcZ

https://en.wikipedia.org/wiki/Journey_to_the_Center_of_Time 

https://www.moriareviews.com/sciencefiction/journey-to-the-center-of-time-1967.htm 

https://www.millionmonkeytheater.com/JourneytotheCenterofTime.html 

https://theory-practice.sydney.edu.au/2018/03/journey-to-the-center-of-time-1967/