The political comedy starring James Franco and Seth Rogen, who also co-directed and co-wrote, was set for a wide release on Christmas Day on about 3,000 screens but was given a limited release in the wake of the Sony Pictures cyber attack.
Sony also made the movie available onine via YouTube, Xbox Video and Google Play.
The Interview has been rented or downloaded more than two million times since being released online on Tuesday, according to an article on Sunday by Variety.
The Interview also surpassed other recent video on demand success stories such as the Chris Evans post-apocalyptic drama Snowpiercer that has earned $7 million on demand.
'I'm so grateful that the movie found its way into theaters, and I'm thrilled that people actually went out and saw it,' Rogen said in a statement.
'We are very pleased with how it is doing both theatrically where we are seeing numerous sell-outs across the country, and online where it remains at the top of many charts,' added Rory Bruer, Sony's president of worldwide distribution.
The film's unique distribution also gave its stars Franco and Rogen and co-director Evan Goldberg a rare opportunity to interact with fans as they live-tweeted on Sunday while watching the film on demand.
Netflix also was in talks to secure The Interview for the streaming service but a deal has not yet been reached, according to Variety.
Nonetheless, The Hobbit: The Battle Of The Five Armies slayed the Christmas competition at the U.S. box office.
The final installment of the three-part adaptation of the JRR Tolkien book took $41.4million to hit the top spot over the weekend, coming on top of the $54.5million it earned during its opening weekend, according to studio estimates released on Sunday.
Audiences certainly had a wide-range of choices over the Christmas weekend with other new films such as Angelina Jolie's Unbroken and the star-studded fantasy Into The Woods in cinemas.
The World War II epic Unbroken took second place with $31.7 million over the weekend with a four-day haul of $47.3 million.
'We're all thrilled,' said Nikki Rocco, Universal's president of domestic distribution. 'It's a testament to how great this movie is. I'm so happy that America found out about it.'
Added Rentrak's senior media analyst Paul Dergarabedian: 'The story of Louis Zamperini really offered a nice alternative for moviegoers who weren't looking for a fantasy world, a musical or a family film.'
Disney's musical Into The Woods with a PG rating came in a close third with $31 milllion and $46.1 million across the four-day period.
It replaced Mamma Mia as the biggest opening for a screen adaptation of a Broadway musical ever.
The rest of the top five was populated by holdovers Night At The Museum: Secret Of The Tomb and Annie, which earned $20.6 million and $16.6 million, respectively, in their second weekend in theaters.
