In the first film, the gang comes across a rock that looks like a Longneck that leads in the direction of the Great Valley. In Wisdom of Friends, they find a rock that looks like a Yellowbelly that leads in the direction of Berry Valley. The search for Belly Valley itself was reminiscent of the kids trying to find the Great Valley in the original. Another similarity during the final Sharptooth/Sharpteeth confrontation; in the original, Cera yells out "I'm coming!" before ramming the boulder, whereas here she yells, "I'm coming, Doofah!" The way the Sharpteeth get knocked off the cliff via boulder and fall a long way down also reminded me of Sharptooth's defeat in the original. And then, immediately after the Sharptooth/Sharpteeth are vanquished, the kids find the Great/Berry Valley. Even the shot of them standing on a plateau looking down into Berry Valley is much like the Great Valley reveal shot.