A Bridge Too Far (1977) A three, count 'em, 3 hour epic, detailing not only the generals, but also some front-line guys. As an American, myself, I was never too thrilled by Monty; though having spent my 1st 40 years living in a Maryland county named after him.
Anyway, it is 1944, and Gen. Montgomery devises a daring plan that should, if successful, end the war in Europe by Christmas. He intends to drop paratroopers along a certain road in Holland at its 6, count 'em six bridges, and capture and hold those bridges, so the tanks can roll along, right across all 6, the 6th being over the Rhine river, right into Germany. 6 bridges; hence, the title.
I am assuming that there was quite the heated discussions at the upper levels, that is, Eisenhower, Patton, & Montgomery, the latter two having different plans, while the former, keeping those two from bringing the house down on them. Poor Eisenhower, more a political guy, than strategic, so I have read, anyway. Regardless, this drama was not depicted in this film, it might have been 4 hours long, if it had.
So, in the film, it had already been decided to go with Montgomery's plan; despite the fact that if any one of those bridges was not captured intact, the whole chain is broken.
I had seen this long ago, and remember not much. Too many things went wrong, and many were depicted here. One of which, was that the radios were made for the wrong frequency. Difficult to imagine now, but they relied upon crystal oscillators for the frequencies the radios would receive/transmit. Not only that, but the range of transmission/ reception was very limited. So, they drop at the designated spot, but cannot communicate with the guys at the base. Bad because the air drop of supplies ends up in the enemy's camp.
I found the film not overly long, given the details covered. All star cast, & more than a few names unfamiliar to me.