That’s not a tear, it’s a splice. That’s where they literally cut the pieces of film apart and then taped or glued them back together in the editing room to create the final edit of the film (this is where we get terms like “cutting film”, “final cut”, “cutting room floor”, etc. - it was a physical process and they literally cut the various pieces of film up and put them together in the order needed.)
These have always been there (in fact they’re on every film you’ve ever seen that wasn’t edited digitally, which is most films in history), but you normally don’t see them because they are supposed to matted out by proper framing. It’s very disappointing to hear that criterion of all companies left these in sight. They plagued the previous media blasters BD of Megalon and I was hoping they’d be fixed in this set. Sounds like that probably isn’t the case?
Edit: For people who were lauding the criterion screenshots of having more picture information at the edges over the Sony transfers of certain films; perhaps it’s actually too much information? As we said before, the difference between the two would be well within the normal tolerances of matting the projector. Maybe the Kraken discs are actually more correctly framed if all the criterion discs are showing every editing splice.