I would say make the subtitles a little more visible.
Dude, all I have to say is good job! I hope to get to this point in the near future. This is definitly a movie and not a parody of a movie which is what a lot of amateurs make. The only 'advice' I would give you is to have others look at your finished movie (like you're doing now) and see if anything needs to be tweaked.