Love the trailer. You always must remember that cgi and aircraft markings will look unrealistic because that is what the public is familiar with. The 109s look like they're from the Battle of Britain. That's because thats where the majority of people identify them from. There seem to be no 190s, because the 190 could be mistaken for an American aircraft in German markings, also because the 109 is much uglier, portraying that good bad guy look.
Hollywood will always do cartoonish cgi because it is exciting.