I only have a few bits of this movie but it has been driving me crazy, it's a live action fantasy and there is a man standing in a desert and can't find his way out, he picks up a stick or rock and throws it out in front of him and it shatters a mirror that was creating a mirage of the desert, behind the mirror is a dark dungeon like place that is part of a castle. He follow it to the top I think where he has to fight and evil person,. that's all I remember, it's from the 80's or 90's and I woud love to see it again but can't even begine to remember what it was. If anyone has any idea I would really appreciate it!! Thanks

The shattering glass mirage thing happened in Time Bandits (1981).
Here is a screenshot from that scene.

Oh my word I think your right! I looked at the screenshot and that is how I remembered it. WOW!! Thank you so so so much. That has been bugging me for too long. Now I have to go find and watch that movie.

You're welcome, it's a great movie. Have fun.