Padlock in Corner of Film Poster on Poster Wall

Hi there, I have some films on my Poster Wall that show a padlock sign in the bottom corner. Does anyone know what this means?

Assuming it's something that's accidentally been turned on and causing a restriction, could you please let me know how to remove it? Thanks for any help!

 

The access is locked because of your child protection settings. Just disable the feature under the Home Theater settings.

The default settings are movies and TV shows are locked over the age of 12 (Germany). The password is 123

 

Thanks very much - is there a default password or something as I never set up a child lock?

 

It is 123