I have watch a movie when i was kid & i can't remember the title. There is a troop lost their way at a place (another earth i think) that have no man until they find the creatures/alien (i don't know). The creature's body is round & it eats anything (like pacman). Some how in the end, they survive by plane & from top view they can see the creatures eat all the ground until nothing left. Then they arrive at an airport (no body there). They stand together with hand in hand at the airport wall, & time moving them to the normal world. So, somebody out there please help me. I want to watch the movie again. I need the title...