What land before time movie had a girl long neck?

Answer 1

Ali the long neck is featured in the fourth film in the land before time series known as "The Land Before Time IV Journey Through the Mist." She also makes a return appearance in the 6th episode of the TV series, entitled "The Brave Long Neck Scheme" in which Ali's herd returns to The Great Valley, and Littlefoot and Cera find out that Ali has a new friend, Rhett, who boasts about himself and claims Sharpteeth fear him. The gang decides to bring a real Sharptooth (Chomper) to convince Ali that Rhett is making up the stories. However, when Rhett sees Chomper, he runs away to tell his herd, who in turn come to kill Chomper.