Richard Fleischer's Fantastic Voyage is a somewhat silly but generally entertaining piece of science-fiction, featuring charming and oft striking but mostly unconvincing effects and a raft of endearing but mockably earnest performances.
"An incredible journey through the inner workings of the human body. In this Academy Award®-winning sci-fi adventure starring Stephen Boyd, Donald Pleasence and Raquel Welch, an elite medical team in their state-of-the-art submarine, the Proteus, is shrunk down to microscopic size and injected into the bloodstream of an ailing scientist to save his life. Battling the body’s powerful natural defences--as well as a saboteur in their midst--the crew is in a race against time to complete their mission before the miniaturisation wears off." 20th Century Fox