I watched this when I was under 10 yrs old and it was in the 80’s and in English.
All I can remember is one scene. This group of 5 or 6 girls (high school or college age) convince this overweight girl to change into a bikini or skimpy outfit. They tell her to wait in a room. Next thing that happens is a guy that I think the girl likes, walks into the room and she’s mortified and he’s mad and feels bad for her. All the girls start laughing and the girl runs out of the room. Also, this scene was in the daytime. I remember it being very bright in the room from sunlight.
I know it’s not much to go on, but I hope someone knows what this is from. It’s been driving me crazy trying to figure it out. Thanks