There is a lot of review bombing going on today. Sadly it is quite clear that they are reviewing the trailer, if that, only.

International feels more like a reboot of the first movie than it should. I mean, at least MiB 2 and 3 got away from the whole "recruit" segment and continued a story line fans were familiar with. I understand to do a continuation without Smith or Jones would require another "recruit" segment, and at least they did it from the angle of a normal person finding them this time. That is the most interesting part of MiB International to me, how she found them and, sadly, it is one of the shortest segments of the overall movie. I would have loved to see more about how she got access to NASA computers and satellites without being caught, how she learned to recognize the traits of a space ship landing/crashing versus false calls of just another meteorite.

Her background just seemed to be glossed over and not really fleshed out, though admittedly, Smith's background in the first movie was not exactly fleshed out all that well either. The setup for his background was much better handled though and it felt believable. It gave a lot of hope to those watching to be more vigilant in paying attention and doing all you can.

MiB International's background for Molly came off more like "break a few laws, do well in school, and generally weird out people at the CIA and FBI in hopes of getting into the "secret" organization.

As with most things like this, the first is usually the most well thought of because it is unique and novel. Everything after it is usually not handled nearly as well, partly because fans aren't able to be fooled twice and also because producers now have a high watermark to hit, or intentionally avoid.