Looking for a movie, prob mid to late 90's. A thriller where a kid is trying to hide and gets in...

a van and there are other kids in there. A couple takes the kids to their house where they have a cool play room to relax the kids and they make them do stuff and film them. And the mom is looking for her kid...I think he gets ahold of a cell phone and the mom finds them. If you know what it might be that would be wonderful!! thanks.

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