I second The Man Who Would Be King, it’s up there with Raiders of the Lost Ark as one of the best adventure movies.

Caine’s character, Colonel J. O. E. “Joe” Vandeleur, had very little screen time in A Bridge Too Far, but was instrumental in Operation Market Garden getting as far as it did. Without the bridge his unit captured the British 1st Airborne Division probably would have been wiped out completely.