A couple that come to mind are Patton, Dog Day Afternoon, and The Outlaw Josey Wales. Patton was one of the first of what I would call raw war movies, showing a bit more of the reality of war. Though by today's standards, is pretty tame. Plus there was a lot of swearing, that to that time, was NOT in mainstream movies. Patton was the first I remember seeing that pushed back a bit on the glorification of war, though some is a bit over the top about the man. Or so I've heard. Never met him, so I'll leave that to folks that know. But his bravado kind of glorifies war all over again. Hadn't really thought about that until now.

The Outlaw Josey Wales was a classic western, and it had a bit of humor too. Loved Chief Dan George (hence I quote him now and then in my posts...) He stole that movie. I remember my friend Jimmy McD and I counting how many people Clint shot in total. No, not something to be proud of on some scale, but hey, we were kids when we watched it.
The western is probably my favorite genre, but not as many come out anymore, though a few more recent are classics (not 70's). Quigley Down Under, Silverado, and the more recent, really good Open Range.

Dog Day Afternoon is an early Pacino, and I like a lot of his stuff. Supposedly it's based on a real story, so that makes it even more interesting. If not a bit hard to believe.

Thanks for the food for thought on this idea. I love movies, and more will no-doubt come to mind in time. There were a lot of greats in the seventies. James Bond really got started then. (I realize few of these are very 'deep' movies, but entertainment is usually why I go...) Thanks, and movie on.