The following scene is from the Disney movie "Finding Nemo". The characters are Dory and Marlin (they're both fish). The two are on a search for Marlin's son, Nemo and find themselves trapped in the mouth of a whale. I think this is a wonderful analogy to birth and all the surrounds it.
[Dory is happily riding on the current as water drifts in and out of the whale's mouth]
Marlin: Would you just stop it?
Dory: Why? What's wrong?
Marlin: We're in a whale! Don't you get it?
Dory: A whale?
Marlin: A whale! 'Cause you had to ask for help and now we're stuck here.
Dory: Wow, a whale. You know, I speak whale.
Marlin: No, you're insane, you can't speak whale. [Marlin now franticlly throws himself against the inside of the whale's mouth] I have to get out! I have to find my son! I have to tell him how long sea turtles live! [now lying on the whales tongue, Marlin sobs]
Dory: Hey- you okay? [no answer from Marlin] There, there. It's all right. It'll be okay...
Marlin: No, no it won't.
Dory: Sure it will. You'll see!
Marlin: Nooo. I promised him I'd never let anything happen to him.
Dory: Oh, that's a funny thing to promise.
Dory: Well, you can't never let anything happen to him. Then nothin' would ever happen to him. (pause) Not much fun for little Harpo.
Marlin: What's going on?
Dory: Don't know. I'll ask him [says something in "whale speak"]
Dory: [whale speak]
Dory: [whale speak]
[whole whale shakes and rumbles]
Dory: I think he says we've stopped.
Marlin: Well of course we've stopped! Just stop trying to speak whale. You're gonna make things worse.
Marlin: (gasp) What is that noise? Oh, no! Look what you did! The water's going down! It's, it's it's going down!
Dory: Really? You sure 'bout that?
Marlin: Look, already it's half empty!
Dory: Hmm. I'd say it's half full. . .
Marlin: stop that! It's half empty!
Dory: Okay, that one was a little tougher. He either said we should go to the back of the throat or... he wants a root beer float-
Marlin: -of course he wants us to go there, that's eating us! How do I taste Moby? Huh? Do I taste good? [now to Dory] You tell him I'm not interested in being lunch!
Marlin: Stop talking to him!
[whale's tongue flips Dory and Marlin to the back of his throat but Marlin hangs on and grabs Dory's fin]
Marlin: What is going on?
Dory: I'll check! [in whale speak] What-
Marlin: No! No more whale. You. can't. speak. whale!
Dory: Yes I can!
Marlin: No you can't! You think you can do these things but you can't Nemo!
[as Marlin realizes he's said Nemo's name instead of Dory's, whale begins to groan louder]
Dory: [in answer to what the whale groaned] Okay! [lets go to drop, but Marlin catches her]
Dory: He says it's time to let go! Everything's gonna be alright.
Marlin: How do you know? How do you know something bad isn't gonna happen?
Dory: I don't.
[Marlin thinks for a moment, then lets go]