Factual error: In the shot of Florence with several bridges and the river shown, cars and motorbikes can be seen going across the lowest bridge in the shot. (00:10:10)
Factual error: When Lucy and Charlotte are discussing the view from their rooms, Charlotte says they were to have South facing rooms with a view of the Arno and instead got North facing rooms without a view. Later when they have Rooms with a View - their view across the Arno faces North! The Duomo is on the north side of the Arno. (00:02:50 - 00:10:25)
Continuity mistake: Right after Lucy buys her pictures, she walks on the plaza and takes off her coat, carrying it on her arm. When she starts fainting, George catches her and starts carrying her. Both of her arms are in clear sight and the coat is nowhere to be seen. The shot changes, and then her coat is again wrapped around her right arm, squished between their bodies.
Chosen answer: The joke is: The American girl asks her father "What did we see in Rome?" The man says "Rome was where we saw the yellow dog." Explanation: Americans can tour the Eternal City and all they will see that is memorable or of interest to them is a dog.
Myridon
I don't get it. It doesn't make sense.
What part doesn't make sense? Rome is filled with better things than a dog. To put it another way, it would be like if you went to one of the greatest sporting event live with on-field/court-side/ring-side tickets and when asked about the event you said "I thought the nachos were good."
Bishop73
It's a crude joke about Americans. It doesn't have to make sense. It's a joke that highlights the sense that Americans are crude, illiterate, with no culture. They believe a yellow dog (a common dog in the US) was the best thing to see.
odelphi