Continuity mistake: When Aidan is in the hospital, Rachel talks to him. When the camera zooms in, you can see the nasal cannula is hanging half out of his nose, but when we see the whole picture it's fully in his nose. When the camera zooms in again, it sticks out again.
Factual error: There are several problems in the hospital scene where the psychiatrist commits suicide by giving herself an air embolism (injecting air into a vein): the volume of air she injected wasn't large enough to cause death (it appears she used about 30Ml, over 100Ml would be needed), death wouldn't be as quick as was portrayed, and it wouldn't be nearly as "peaceful".
Continuity mistake: As Rachel is trying to get Aidan to get in the bath at Max's house, she removes the blue towel from him and throws it on the towel- rack. Then during the rest of the bathroom scene, everytime we see the blue towel in shot it is in a different position each time. (00:39:55 - 00:46:35)
Visible crew/equipment: In the shot of Rachel driving up the street with Aidan just before they arrive at their new house, the car breaks right in front of the camera for a few seconds. In this shot you can clearly see the camera reflected in the left corner of the car. (00:07:15)
Continuity mistake: When the deer attack the car, the first deer hits the car, and he shatters the driver's side window. In the next cut, you can see Rachel's reflection in the recently shattered window. (00:43:52 - 00:44:20)
Continuity mistake: When Rachel is working in her office and Max comes in to talk to her, during the scene the direction that the coffee mugs handle faces (on Rachel's desk) keeps changing. (00:11:00)
Continuity mistake: At the beginning of the movie when Jake sits down next to Emily with a bottle of drink and two empty glasses, after he sets them down on the table the two glasses are suddenly filled with drink, instantly between shots. (00:01:50)
Continuity mistake: When Rachel is tucking Aidan into the bed at Max's house she puts a red blanket on him and then a brown blanket on top. Then during the next shots the red blanket goes from slightly visible to completely covered by the brown one and back again to being slightly visible. (00:39:15)
Continuity mistake: In the first Ring it is revealed that Samara was in fact the Morgans' daughter. They showed her birth certificate with the Morgans as the parents and then the father before killing himself yells that his wife wasn't supposed to have a child. Yet a huge part of the second movie is about how Samara is adopted and Rachel talks to her real mother in an asylum. Um... What happened to what was found out in the first film?
Continuity mistake: When Rachel is placing Aidan into the bathtub slowly in order to try and rid Samara from his body, as she places him in the water, how deeply she has him in the water keeps differing from each shot. (01:26:40)
Continuity mistake: When Rachel finds Aidan standing at his bedroom wall and the image of a tree begins to burn in the wallpaper, she runs over and tries to pull him away. As she does this, the globe sitting on the desk beside them rotates itself between shots. (00:35:45)
Continuity mistake: When Jake enters the living room to bring the drinks to Emily, the magazine and remote sitting on top of the two books moves between shots. (00:01:35)
Continuity mistake: When Aidan is in the bathroom at the fair, he turns a faucet and then he walks across and turns another. After turning the second one, the faucet changes position from the wide view to the closeup, evident by the ridges on it. (00:27:45)
Audio problem: In the flashback when Evelyn is walking into the small water fountain with baby Samara, the baby is heard screaming and crying unhappily. Yet when we see the baby's face her mouth is barely open and she doesn't look like she's crying. (01:07:30)
Continuity mistake: When Rachel is talking to Aidan at her Daily Astorian office, when she asks him if he knows why Samara is back, she puts her hand on his face. In the very next shot it's down in her lap. (00:37:05)
Continuity mistake: When Rachel is burning the videotape in the canister out in the field, she throws the tape on the fire with all of the reel pulled out and sitting on top of the case. In the next shot the reel is no longer visible on top of the video. (00:19:30)
Continuity mistake: After Aidan comes downstairs and sits at the table for dinner, he is flicking through his photography folder. In the shot when Rachel walks away from him and goes back to the oven, there is no plate at Aidan's placemat, yet it is there in every other shot before and after. His drink also moves without him touching it. (00:09:05)
Continuity mistake: When Rachel sits next to Aidan as he is in the hospital bed unconscious, as the shots change, the amount and position of the wires next to his head (to his right) keeps on changing. (00:50:35)
Answer: It was the only way out. She followed Aiden's voice to the cliff and kept hearing it from the same direction. She knew she had to jump off to get back to the real world.