"What is admirable on the large scale is monstrous on the small."
It's Agatha Christie meets "The Battle of the Bulge" meets... oh you get the picture. Great cast lead by the always fabulous Peter O'Toole who delivers a memorable performance as General Tanz. Also nice to see French veteran actor Philippe Noiret in an ensemble that includes Omar Sharif, Tom Courtenay, Donald Pleasence and Christopher Plummer.
It is tense all the way mostly thanks to the great use of first Warsaw (and the atrocities performed there) as a backdrop for the story and then we move to Paris where the plot to kill Hitler is nicely interwoven.
"The Night of the Generals" is at parts predictable, yes, (with the great exception of Omar Sharif's final scene) but I guess that's also what makes it kinda' enjoyable at times - at least in the very last scene - when you know what's coming (and boy does it feel good).
Some may find it a bit tedious and yes it is long, but when it was over I knew I would definitely see it again sometime in the future so in short: it works! If you think this movie is your cup of tea, based on the IMDb-information, you're probably right.