This is my report on the source of the quote in question: "It's this way"
In accordance with the guidelines mentioned at the beginning of this topic:
1. It is from The Land Before Time IX: Journey to Big Water.
2. Littlefoot spoke the sentence/statement.
3. The sentence/statement was addessed to Littlefoot's grandfather.
To show everyone who wasn't aware of what part this quote is derived from, I shall reiterate the scenario as best as possible:
Littlefoot climbs on top of a log, although he slips a bit at first.
"Gee, sky water has really changed the land around here."
He clears throat, then begins speaking in a deep voice so as to sound like there is really someone else there, in an attempt to make up for him feeling alone. "Think it's safe to go on, Littlefoot?" he asks himself.
Returning to his normal his normal voice, he answers himself by saying, "Sure it is. Maybe "we'll" find some new kind of creature like Grandpa said!" while walking off the log.
After going on top of a rock, he clears his voice again, resuming that deep voice which makes the impression to him that he is actually talking to a different character, and says, "Okay, but we have to be careful."
Using his real voice again, he challenges his "other self" and says, "Awww, don't be such a scaredy egg!" Then he gasps and exclaims, "Whoa!" after seeing all the new water in the Great Valley. "Look at that! There's so much water!" he exclaims.
Then with his deep sounding, "careful" personality, he says, "Uh, I think "we've" gone too far from home now, Littlefoot."
Now for the first time, he uses his normal voice to actually agree with his deep one, "Yeah. you may be right." With that, he runs off and the camera zooms out to show a lot of new water and that it's flooding part of the Great Valley.
When he comes back, he has a lot of grownups with him, including his grandfather. Littlefoot, who was leading the way to where he saw the new water, calls out when he arrives, "Over here, Grandpa! It's this way!"
I will patiently await evaluation on my report for as long as necessary. Thank you for your time.