Remember playing 'spot the difference' when you were younger? Well now you can once more thanks to the latest interactive campaign from Louis Vuitton to celebrate their collaboration with artist Yayoi Kusama.

Featuring fashion blogger Bip Ling wearing the LV Kusama polka dot collection, Louis Vuitton have produced two 60 second videos, almost identical save for 5 small differences. Fans are asked to point out all the discrepancies using a twitter hashtag to be in with a chance of winning a limited edition prize.

It's an interesting and fun way to engage consumers and get them watching the content more than once. Try it for yourself with the videos to see how well you do...