In the orgy scene at Roy Cohn's party the first shot shows Cohn on bottom, but the second shot shows the reverse and the two men have changed places instantly.
The logo of American Express used in the 1975 hotel scene is a modern Version, rather than the actual one used in the time setting.
In the scene where Trump meets with Vic to develop a midtown Commodore Hotel - one shot with Trump walking down the sidewalk and stopping to adjust his hair, a modern gray Hatchback passes in the background.
In the club in 1976 the song "Yes Sir, I Can Boogie" by Baccara is played. The song came out in 1977.
When Donald invites Ivana to his club, his chauffeur pulls up to the corner where she and her colleagues are; in between two shots, several modern cars occasionally drive past among the period ones in the distance.
In the Rolls Royce scene where Cohn explains the rules of winning to Trump, a black SUV briefly appears outside Trump's window for a split second as they drive through town.
"Congratulations" in Czech mean "gratulace" or "gratuluji", not "Gratulame", as said in the movie.