Ok I don't remember a lot but there is a girl and she is watching her little brother and he won't quit crying then she wishes he would be gone I think 3 times and then either a goblin or troll looking thing pulls him under the bed into another world and she has to go find him.. if anyone could help that would be amazing I'v been searching for this movie for ever and I can't remember the name...

The Labyrinth

That sounds like it's probably Labarynth (David Bowie is the villain).

you answered my question!. I just posted a question on this movie as it was bugging me not remembering the name... thank you so much, this was annoying me for too long =P... nice one