Based on the novel by Michael Crichton, directed by
Robert Wise and starring Arthur Hill, David Wayne, James Olson, Kate Reid, Paula Kelly, George Mitchell,
Ramon Bieri, Peter Hobbs, Kermit Murdock, Richard O'Brien, Eric Christmas, Mark Jenkins, Peter Helm, Joe Di Reda, Carl Reindel,
Ken Swofford, Frances Reid, Richard Bull, John Carter, Dee Carroll, and cameos by
Michael Crichton and Michael Pataki, released in 1971.