Complex sentence: This was the last film completed by pioneering science-fiction producer George Pal, and was directed by Michael Anderson, who had previously done another big budget adventure film, "Around The World In 80 Days".
Split into simpler sentences: This was the last film completed by pioneering science-fiction producer George Pal. It was directed by Michael Anderson, who had previously directed another big-budget adventure film, "Around The World In 80 Days".