The song that Jean-Luc and Robert are singing after their fight is a 17th century French song entitled Au près de ma blonde. The full chorus says "Au près de ma blonde, qu'il fait bon - fait bon - fait bon, au près de ma blonde, qu'il fait bon dormir", (translated as "by the side of my girl, pleasant it is to sleep") but the two men omit saying the last word "dormir" (to sleep).
Picard and his family are supposed to be French. Why do they all speak with British accents?
When Wesley is looking at the recording of his father, Jack, Jack's eyes look the wrong way. His eyes should be looking straight forward at the camera, because this is a recording from 20 years before the time of the episode. Instead his eyes are looking to his right--directly into Wesley's eyes.
Jack Crusher's uniform is the TOS-movie style minus the turtleneck, as seen in other episodes, but features the TNG-style communicator.
Although his rank is clearly stated as Chief Petty Officer, Chief O'Brien is shown wearing Lieutenant's pips.
Trivia: At the end of the episode, the constellation of Orion can be seen in the night sky as Rene Picard gazes out from beneath the tree at the stars.
The sun moves in mysterious ways in Robert's vineyard. This is especially clear during the first conversation between Picard and Louis, where the light shines from behind or straight into Picard's face depending on the camera angle. In the scene just before the fight the sun is to the left of Picard, but as he attacks his brother he pushes him into the sunlight. And after the fight, there is no direct sunlight or bright sun depending on the camera angle again.
Jean-Luc: Why didn't you break a few rules?
Robert: 'Cause I was the elder brother, the responsible one. It was my job to look after you.
Jean-Luc: Look after me? You, you were a bully!
Robert: Sometimes … maybe. Sometimes I even enjoyed bullying you!
Jean-Luc: All right. Try it now!
Robert: Why did you come back, Jean-Luc? Did you come back because you wanted me to look after you again?
Jean-Luc: Damn you!!
Rene: You are my nephew, Jean-Luc, from the starship Enterprise.
Picard: Then you must be my uncle Rene.
Rene: I am not your uncle, it's the other way around.
Picard: Too bad, I rather enjoyed the idea.
Sergey Rozhenko: (to Chief O'Brien) Don't call me "sir." I used to work for a living.
Picard: It's time that I was going.
Marie: Already, Jean-Luc?
Picard: My ship will be ready to leave orbit soon and I belong aboard. If I should ever doubt that again I'll know where to come.
Picard: You don't know, Robert. You don't know. They took everything I was. They used me to kill and to destroy. And I couldn't stop them. I should've been able to stop them. I tried. I tried so hard. But I just wasn't strong enough. Not good enough. I should've been able to stop them. I should've been able to...
Robert: So, my brother is a human being after all. This is going to be with you a long time, Jean-Luc. A long time. And you have to learn to live with that. You have a simple choice now: living with it below the sea with Louis or above the clouds on the Enterprise.
Picard: You know, I think you were right. Maybe I did come back so you'd look after me.
Robert: I still don't like you, Jean-Luc.
Robert: Jean-Luc, here is a little of the '47. Try not to drink it all at once, and, if possible, try not to drink it alone.
This is the only episode of the entire series in which Brent Spiner (Data) does not appear.
This is the only episode where the bridge of the Enterprise is not shown.
Colm Meaney's character finally receives his full name in this episode: Miles Edward O'Brien. Up until this point, he had only been referred to as 'O'Brien.'