Doh!! I'm an idiot, no idea how I left out Shawshank and Andy Dufresne. Get busy living.... or get busy dying. Top 5 movie overall too, if not the best.
Saving Private Ryan also hit me pretty deep when I first saw it (freshman in college), as my family was always very admiring/respectful of the military. In high school I had seriously considered attending West Point or the Air Force Academy, so that movie really struck me when it came out me several years later and further locked in those sentiments. Band of Brothers probably even more so.
Lots of great movies listed, keep them coming, this is a fun read
I adore pretty much anything from Tarantino, Mel Brooks, Villeneuve, Shyamalan, most of Scorsese, as well as the older Reitman and Zemeckis flics. Maybe not in terms of "defining" or relating (at least for me), but just great entertainment. And my guilty pleasure admission are Adam Sandler movies. You
know they're bad, but I enjoy watching something that reminds me not to take myself too seriously. Plus he's always got a ridiculously hot chic next to him lol.