[TOMT][MOVIE] [Late 90s / early 2000s](?) movie with one remembered scene involving children in a house/hotel
I’m trying to find a movie from the late 1990s or early 2000s (possibly American or English commedy). I watched it when I was a kid, but I only remember one specific sequence of scenes, not the main plot.
Definetly the movie is not about this situation — it’s just a scene I remember.
There is a little girl who is placed in a house or building with two adult women. They tell her she has to stay there and cannot leave. The girl keeps asking if she can go, but they refuse and tell her to stay calm.
They mention she will stay with another girl who is described as the “best behaved / nicest girl in the world” (I think her name was something like Marianne or Betty Anne, but I’m not sure).
This “good girl” arrives, but behaves in a strange and creepy way, lughing like a pig. The main girl looks uncomfortable or disgusted.
After the adults leave, it turns out this girl is actually very mean and controlling. She tells the main girl she has to do everything she says. I also remember she braids her hair and forces her to brush her teeth with a lot of toothpaste.
Later, a group of kids/teenagers is trying to find the girl. They are in a hotel or similar building and go around knocking on doors.
They eventually find the right door, but it is opened by the “mean girl”. She refuses to let them in, saying things like she doesn’t know them and that they can’t come inside.
At one point, a girl in the group confronts her. She suddenly starts yelling/screaming in front of her, and the “mean girl” gets scared and runs away.
Eventually, they enter a room where an adult woman tells them to be quiet because the girl they are looking for is sleeping inside. They see her sleeping.
That’s everything I can remember. As I already mentioned I’m not sure about the main plot of the movie.
I know this is very little and quite vague, but it’s all I can remember.
If anyone is able to identify it from these details, I would really appreciate it.
Thank you in advance for your help!