Full Metal Jacket
Speaking of Kubrick, he adapted his own screenplay to the film, Full Metal Jacket. Things took a bit of a turn from his direction with R. Lee Ermey playing the drill sergeant. Actually, Kubrick knew that Ermey was the perfect fit after Ermey sent in a tape of himself going off on Marines. After Full Metal Jacket came out, Stanley Kubrick revealed that R. Lee Ermey improvised around half of his character’s lines.

Full Metal Jacket
Saving Private Ryan
Naturally, you can’t make a list of best WWII films without including Spielberg’s Saving Private Ryan. Now, let’s take you to the part where Captain Miller (Tom Hanks) has that discussion with Private Ryan (Matt Damon) about things left behind. Remember when Ryan talks about seeing his brother kissing a girl? Actor Matt Damon invented that spiel all on his own!

Saving Private Ryan