Easy as Cake to get all trophies in the game:
1. Watch the whole movie and you'll get both bronce trophies after the movie.
2. After the movie press continue to see the last scene and you'll get the 100% trophy.
3. go back to the start screen and read all character files (just keep hitting r1, you don't really need to read them all)
4. after the last file you'll receive the last two gold throphies. (This one and the one for reading the files)