All right. More double feature suggestions, but not very interesting ones:
Downfall, about Hitler's last twelve days, and Hitler: The Last Ten Days starring Alec Guinness walking around stiffly as a weirdly dignified Hitler.
Saving Private Ryan and A Bridge Too Far or The Longest Day.
Titanic and A Night to Remember.
Woody Allen's Sleeper and the very early sound movie, Just Imagine.
Schindler's List and the TV miniseries The Holocaust.
High Noon starring Gary Cooper and High Noon Part 2, starring Lee Majors.
Airport with an all star cast and Airport '79 starring Lee Majors.
Charlie Chaplin's City Lights and Jerry Lewis's The Disorderly Orderly.