This is the classic, of course. Being shot in 1984, and done in a documentary shaky-cam style, it is far from the sharpest of Blu-rays on the market …
Hang on. I was just about to write: ‘In fact, it might even have been shot in 16mm, given the relatively soft and grainy image.’ Then I thought it might be smart to check. According to IMDB, it was indeed shot in Super 16, which is a single sprocket hole version of 16mm film allowing a slightly wider frame. Which explains a lot.
Nonetheless, the Blu-ray is much cleaner than the DVD, and a bit more detailed. This isn’t the most revealing of the comparison shots, but it is the most fun: