I saw this movie in tv during the 90s. It is coloured.
All I could remember is that
1: there are 2 children. 1 boy 1 girl crawling under their blanket to go to a different world.
2: lastly their parents crawl too to save their lifes.
I could not even remember on why are they crawling and who is the bad characters.
I would like to thank you all if any of you can help me with the movie title.