Watched it last night.
If you're not remotely interested in the subject of abduction, remote viewing, and historical UFO retrieval accounts, you'll find this movie confusing and, more than likely, give it a low rating.
I enjoyed it thoroughly. It's a mixture of reported events that may or not be true, some of which are hotly contested.
If family and friends think your interest in the subject is a bit woo, they won't enjoy or understand Disclosure Day and this alone will distance them from the subject opposed to roping them in.
It's movie Marmite, you'll either love it or hate it, a couple in front of me walked out after 20 minutes.
*Spoiler*
The Gleason footage was a surprise. Spielberg obviously did his homework.
Strong performances all round.
I'll give it 8/10 Marmites.