It's not the fasted growing religion and its fast growth is a result of high birth rates in muslim countries as well as in the immigrant communities thorughout Europe and America. Converts represent a very small percentage of new muslims, and anyway there are converts in all religions.
If you decide to put in Zakir Naik, it's definietly a waste of time...
Every religion can make a DVD, or in this case many DVDs, each adjusted to a special target audience, include all the good things, namely the miracles, scientists's comments on the Quran, lectures where the Islamic speakers won... but that would not be a fair representation, would it?
I won't be surprised if the DVD is backed up by a mystic, suggestive music as most of the Islamic promotion videos are.
Proapaganda!
The proper way of spreading a religion is by talk, by a debate or alternatively the internet.