Absolute classic movie!
Best line in the movie:
Shortly after the death of the two brothers (killed when trying to fly their homebuilt biplane THROUGH the barn.... upside down), the son of their Arab adversary lands at the old house in his private/Corporate helicopter (Sikorsky S-76, IIRC), with his young son in tow.
The now-adult Walter meets them and the rich Arab introduces his son to Walter, “the nephew of the men about whom grandfather told all those stories”.
The grandson says, “You mean they really lived?”
Water replies, “Oh yeah, they REALLY lived!”
I love that movie!
Did you ever see the alternate ending at YouTube?