At approximately the 1:05 spot, Ray Milland pulls out two cigarettes, gives one to Maureen O'Hara, lights only hers, and puts the lighter back in his pocket. Yet the next time Ray MIlland is seen, his cigarette is lit.
Captain Evans takes Mrs. Meryll in a sightseeing tour of Sintra in a horse carriage. They stop first in front of the Palácio de Seteais - time for him to quote Lord Byron about the beauty of the place. Then they walk to the viewpoint and look back at Palácio da Pena (construction started in 1836), in the Romanesque Revivalist style, and could hardly have been built by the Moors, as Evans "explains" to his date. The Moors left the Portuguese territory in 1147 and (the latest) in 1249. Also in a hilltop of Sintra (not shown in the movie) is the 8th century granite defensive Castle of the Moors, taken without a battle by the Portuguese in 1147 - the same year the Moors lost Lisbon. As a sea captain Evans should have known better.
Mrs. Merrill asks Evans about the Fado they're listening to in a tavern of Alfama (Lisbon), "Lisboa Antiga". He answers, "Ancient Lisbon - old Lisbon. A sort of Home, Sweet Home, for Brazilians." In a single sentence, Evans shows his insensitivity for the use of the English language, the disparity of Portuguese and Brazilian national souls, and of this Fado in particular - "Lisboa Antiga" was written in 1937 by Raúl Portela, was used in two movies before this, and was made famous the world over sang by Amália Rodrigues - a singer Americans would know since she sang for the Mashall Plan programs (1950), her 14 weeks at La Vie en Rose (New York, 1952), and her NBC Eddie Fisher show (1953). Nelson Riddle took this music to America and orchestrated it for the movie's opening theme - but Evans wouldn't know that.