When FDR gets out of hospital there is a crowd, and one of them is a news cinematographer. His big lens is not racked over the camera's film gate aperture.
When FDR shows up to give a rousing speech to the troops before the invasion of Normandy, he's seen in front of a WWII aircraft (appears to be a Vought F4U Corsair) and on the tail, you can clearly see the words Commemorative Air Force painted on the plane. The Commemorative Air Force is an organization which restores and flies WWII aircraft didn't exist until 1957, and until 2002 was known as the Confederate Air Force.