A Hole in my Heart (2004) is a very unpleasant watch. I kept waiting for a moment that would make the pain worthy, but it never came. I miss the point, just a few people living miserable lives.
Solaris (1972) is such a chore to watch, if we exclude the intro (which is before the lead goes to space), which presents an interesting scenario and some striking scenery. The phenomenon in outer space is not interesting, and neither is the lead performance.
Upstream Color (2013) explores the fun idea of mental connection to other organisms, but then spends too much time doing that through a tumultous romantic relationship. It is done well, but it does not feel so fresh, and the performances are too broody. I have gaps in my understanding... would have liked to know the connection between the pig farmer and those who gift the humans.
Primer (2004) has a performance I hate more than any other in memory, which is a major one played by the director. The character is also quite unpleasant, and so is the writing. The words that come to mind to describe both: self-absorbed. I also don't understand the story... I failed to follow all the dialog.
I Hired A Contract Killer (1990) is a fun dark comedy, and has a wonderful lead performance. It's more entertaining than all above entries. I love the simplicity.