The language of the primes, used in the subtitles as some decepticons speak in cybertronian, is actually a letter-for-letter cipher with English. A key can be found in some coloring books. (although it has the prime symbol as Q.) For a downloadable font, (i spent a long time copying these pixel by pixel) go to Fontstruct and search 'cyberglyphics' To see what it looks like in the movie, you can also just search 'cybertronian languages' on the wiki. I wish i knew about the more angular-looking symbols, probably the modern autobot writing, also used sometimes.