Scenes with David Hedison and Stuart Whitman driving through Los Angelas were full of street noise and car horns honking. For these scenes the two actors were to do their lines over again, but this never happened because of time and cost. This is why you hear a lot of street noise drowning out some of their lines.
When Hester (Gale Sondergaard) is reading the fate of the professor (David Hedison) with Tarot cards, she appears to be using the complete 78-card deck. However, every card she turns up is one of the 22 "face" cards that make up the "Minor Arcana" segment of the Tarot, the most visually dramatic and best known cards. Fate or not, this is almost a statistical impossibility. It would be like dealing 10 face cards in a row from the top of a standard deck of playing cards.