A nice girl with braces (played by Zsanett Kukucska) pops up in the final scene of the movie

https://dereferer.me/?https://www.imagebam.com/view/ME7ECCQ


Audrey Fleurot had real lingual braces while filming the movie:

https://dereferer.me/?https://www.imagebam.com/view/ME7ECNA
https://dereferer.me/?https://www.imagebam.com/view/ME7ECNB
https://dereferer.me/?https://www.imagebam.com/view/ME7ECND
https://dereferer.me/?https://www.imagebam.com/view/ME7ECNE
https://dereferer.me/?https://www.imagebam.com/view/ME7ECNF

In some scenes it is evident that they amateurishly tried to make the braces less visible in post-production

https://dereferer.me/?https://www.imagebam.com/view/ME7ECQB

It is also possible that actress Nikolett Barabas had Invisalign attachments

https://dereferer.me/?https://www.imagebam.com/view/ME7ECV4
https://dereferer.me/?https://www.imagebam.com/view/ME7ECUY
https://dereferer.me/?https://www.imagebam.com/view/ME7ECV0
https://dereferer.me/?https://www.imagebam.com/view/ME7ECV1
https://dereferer.me/?https://www.imagebam.com/view/ME7ECV2