The most extraordinary things about Stephen Harding's The Last Battle, a truly incredible tale of World War II, are that it hasn’t been told before in English, and that it hasn’t already been made into a blockbuster Hollywood movie.

Here are the basic facts: on 5 May 1945—five days after Hitler’s suicide—three Sherman tanks from the 23rd Tank Battalion of the U.S. 12th Armored Division under the command of Capt. John C. ‘Jack’ Lee Jr., liberated an Austrian castle called Schloss Itter in the Tyrol, a special prison that housed various French VIPs, including the ex-prime ministers Paul Reynaud and Eduard Daladier and former commanders-in-chief Generals Maxime Weygand and Paul Gamelin, amongst several others.

Yet when the units of the veteran 17th Waffen-SS Panzer Grenadier Division arrived to recapture the castle and execute the prisoners, Lee’s beleaguered and outnumbered men were joined by anti-Nazi German soldiers of the Wehrmacht, as well as some of the extremely feisty wives and girlfriends of the (needless-to-say hitherto bickering) French VIPs, and together they fought off some of the best crack troops of the Third Reich. Steven Spielberg, how did you miss this story?