Audio problem: When the deer are all grunting at Rachel and Aidan, the whistle of an elk can be heard despite the fact there are no elk in the scene. (00:30:40)
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)
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.