i find a movie watch it cant write shit about the techniques
look at camera angles, and then analyse the composers reasons for choosing to use that angle--i.e. relate it to changing perspective, e.g. In Born on the 4th of July, there is a shot of Kovic's back as he walks into a stadium, this illustrates that Kovic has changed his perspective concerning life....blah, blah, blah.
You can also look at the music used, it might convey different connotations in different parts of the film; you can say here that this illustrates changing perspective...
look at lighting ( same as music), close up shots, slow motion, just about anything really.
hope i helped