Firstly I am a great Harry Potter fan and have all the movies in Blu-ray 2D. I found the 3D effects of both movies inconsistent with only a few scenes truly exhibiting 3D imaginary some even had multiple imaging apparent. Also remember this collection is only 3D so make sure you have the 2D versions before buying this. Better still spend your money on the excellent price Mighty ape has on the whole Blu-ray boxed collection in 2D!