What chords are these ?

http://picosong.com/CibV

It begins with Cm Gm F as 3355xx , 3553xx, 1332xx , but towards the end of the song especially starting at 1:18 it gets confusing, maybe someone here can help me.

;/ Im trying to find , it looks like the first chord as a the 2nds string open B, but i dont really know wich chord that is. I will try again later, but it should not be that hard.