what is this movie about?? (spoilers)

first there is the story about john's father and sydney killing him.
how does that figure into the story, and i assume that syd finds
john because he killed his father. there is nothing that explains
that, just to imply a responsibility sydney feels.

second, why is john so damn stupid. he falls for the hooker, and then
almost kills a guy over $300 in the hotel room risking everything.

why does clementine hook a john immediately after getting married.

i found it unbelieveable that john would call jimmy about the room
situation and not go to sydney first.

also, jimmy was stupid to have a regular high profile job and try
to blackmail sydney.

this movie is running off the coolness and charisma of the sydney
character yet every moment it proceeds it stumbles over itself and
gets cound up and tangled until at the end you wonder what the point
was?

was john in on some plot with jimmy against sydney as a son might
rebel against his father?

maybe i did not get something or missed something, but there seemed
to be some strain and uncertainty between john and sydney at the end
even thought they stated they loved each other.

the other thing is what was the point of sydney's life. he seemed to
get no satisfaction for himself. he could have had clementine, he was
man enough to control her, yet he gave her to john, but he never had any
kind of life himself.

i am assuming that i missed something about the meaning of the term
"hard eight", but then I just found out the name of the movie was
also Sydney? So ... this was s study of Sydney, but the people he
was around were really stupid.

This was an interesting movie, as it sucks you in, but in the end i
found it meaningless and pointless?

can anyone explain why i am wrong?