I discovered Teachers’ Domain yesterday while browsing another site. On here is a stack of digital media, sorted by subject, topic and grade level. It’s a US site, but any teacher can sign up for free. You do need to register with your school name, but as long as you select your country and have your zip code handy you should be able to find your school.
This website is well worth the visit and registration. You are allowed to download and use the content contained on here. It even has some lesson plans and a whole lot of other stuff.