Entitled Old School, it came out simultaneously in more than 90 countries, and within a single week had sold a million copies.
Mr. Zraly's course, which costs $795 for eight weeks, has sold out for 10 years.
It means the last two months are the first time since 1999 that every number one single for eight weeks has sold more than 100,000 copies per week, according to the Official Chart Company.
According to the Official Chart Company, every number one in the past eight weeks has sold more than 100,000 copies per week - a first since 1999.
The film has since notched 530,000 views on the site and Weeks has sold an additional 4,000 DVDs, netting he and his filmmaking partner about $24,000.
The Official Charts Company reported last week that it was the first time since 1999 that every No 1 single for eight weeks had sold more than 100,000 copies a week.
But after two years of hustling, Weeks had sold just 2,000 DVDs and his project, financed by $75,000 in personal savings and contributions from pals, seemed to be fading.
Eventually the weather relented, but all possible flights to Mozambique for the following two weeks had sold out.
In just over a week it has sold 30,000 copies in hardback.
In recent weeks, Merrill has sold its Philippines brokerage, and laid off most of its staff in Australia and Singapore.
