I am looking for a old movie its about kids who found out people was searching for a princess and the kidds tought it was a girl they knew so did tests to find out one was sneakking in to her sleepover and putting a smalll stone or something underr her matress den they found out that the princess is alergic to berries I thing I had a birth mark by her ear and relize that the princess was one of the kids sister

The kids also have 2 other adventure movies

Not quite sure why this is in architecture instead of movies - but I think you're looking for this: Clubhouse Detectives in Search of a Lost Princess (2002) - IMDb

Why is this in architecture?