Remember Lost Horizon? Hollywood always shows the truth in the movies. After a plane crash, a group of survivors cross the ice and find beyond it warm and fertile lands, a true paradise. Note that a song in the movie says that the earth is a circle (not a sphere). Check the lyrics:

"The world is a circle without a beginning,
And nobody knows where it really ends.
Everything depends on where you
Are in the cirle that never begins.
Nobody knows where the circle ends."