Continuity mistake: When Cooper is driving to the coordinates the shot from inside the cab of his truck shows he using the interior light to follow his map, the next shot shows the truck driving away with the light off. (00:22:00 - 00:24:00)
Continuity mistake: When Cooper draws on the board and talks about landing on water, his drawing changes between shots. (01:04:25)
Continuity mistake: When Cooper is trying to console Murph before he leaves, he explains that time will slow down for him. In the first shot of the wrist watches side by side, the watches read at slightly after 9:00. Then Cooper says when he returns they can compare and the watches are shown again. This time they read around 8:20.
Continuity mistake: Cooper is saying goodbye to Murphy. Her necklace jumps in and out of her T-shirt throughout the scene. (00:38:25)
Continuity mistake: When Murphy pleads with Cooper to stay shortly before he leaves, as she shows him the message "STAY" on the notebook, in the first shot she looks down, but in the next one she looks at Cooper.
Continuity mistake: When Murphy asks Cooper to stay, a strand of hair on her right temple alternates from loose to brushed backwards depending on the shot.
Continuity mistake: After Mann says, "You have literally raised me from the dead," the shot changes to Cooper who says, "Lazarus." When the shot goes back to Mann, the reflective sheet he is wearing is propped open more, exposing more of his body. (01:38:10)
Continuity mistake: Cooper drops a coin onto the binary sequence in Murph's room. In the next shot, the coin has moved.
Continuity mistake: At the beginning of the movie when Cooper and the kids arrive to the lake after they took the control of the drone, Murph steps out of the truck and leaves the door open, but in the next shot the door is closed and it's sure that in the entire scene there's no sound of a car door getting closed.
Continuity mistake: Midway through the movie, Cooper is said to be 124 years old while in the new galaxy, and at that time his daughter was still a young girl. Later, when he is back in our solar system and waiting for time to find an opening back to his daughter, who is now in her midlife years, he is awakened at the colony off Saturn, and he's told to take it easy because he's 124 years old but his daughter is a very elderly dying woman. Estimating her age at 90, Cooper should have aged a bit more.
Answer: Cooper would have already met his other family members (grandchildren and great-grandchildren) when they first arrived at the space station and before going in to see the frail Murph, who made the trip while in-stasis. Because she is so frail, everyone would discuss beforehand how the meeting should proceed. Also, it is already a long-running movie, and adding an extended "meet and greet" scene would drag out the ending and lessen the emotional reunion between Cooper and Murph.
raywest ★