Harry Potter and the Goblet of Fire helped two of the largest online movie ticket services set new sales records this past weekend. MovieTickets.com sold $10 million worth of tickets for the latest adventure of the boy wizard and his pals, with last Friday - opening day - setting a new one day record for the number of tickets sold.  Fandango, meanwhile, sold $12 million worth. Both sites compare the number of Potter tickets sold to the number sold for Star Wars: Episode III - Revenge of the Sith. Goblet of Fire blew past Sith on MovieTickets.com but comes in second on Fandango.

Is this the year where online ticket buying finally reaches its tipping point in terms of mass adoption? Combined, the two services accounted for 20% of the movies U.S. income this weekend. That's got to be indicative of more momentum being gained by the idea of buying tickets online.