Marry Me is a 2022 film that stars J-Lo. Her character "marries" a school teacher.

https://dereferer.me/?https://www.imdb.com/title/tt10223460/?ref_=nv_sr_srsg_1_tt_7_nm_0_q_Marry%2520Me

Not only does the teacher's (12 year old) daughter - played by Chloe Coleman, now aged 15 - have a set of metal brackets, so do a few of her school friends. (There is also a girl in the class that's in a wheelchair & has leg braces.)

I've not found any other pics of Chloe Coleman in braces, so I'm guessing that they were possibly fakes for the film.. although having said that, she would be the right age to have them.