In "Song to Song" (or basically in every Malick's film), every minute expands into more than just sixty seconds. Still, however horrible it may feel, this is like a compulsory subject in your class that you should ultimately take, even though you already have understood about it in-and-out.
Watching EDGE OF TOMORROW is like you're playing an RTS game with unlimited lives. It's an expanded, war version of GROUNDHOG DAYS, except that some of the formulas do not work that well. The more you get into the movie, the more you find there's something wrong--and you can't stop to re-think what you've just had because this movie keeps you moving (or accelerating) forward. That's why it's exhausting; it wants everything to end fast, with all possible (but ineffective) ways it has. Which is bad, because the premise is nicely introduced and, well, everything's fine in the beginning.