It Happened at the World's Fair
From The Internet Movie Plane Database
Elvis Presley (Mike Edwards)
Joan O'Brien (Diane Warren)
Gary Lockwood (Danny Burke)
Two men (Mike and Danny) who operate a crop dusting business see their livelihood threatened when the plane is repossessed due to Danny's debts. To make the money to retrieve the plan the pair head to the World's Fair where Danny plays poker and Mike falls in love with a nurse.
Mike and Danny's crop duster.
Another one on the airfield and nearest the hangar.
Nearest the camera.
Douglas DC-4 and Lockheed Constellation.