Check out either 'My Movies' or 'Movie Collection' on Google Play. Have used both in the past, before I got lazy and offloaded most of my physical film collection. You can scan the barcodes of your Bluray/DVD with your camera, so the app does most of the work for you to catalogue your collection. Picks up box sets as well and it's pretty reliable. As both apps point out, they are not apps that allow you to watch your movies.
Premium versions are available for both, giving you more functions / unlimited cataloguing / backups etc. Just decide what works for you...