The website, Cinemablend.com, notched up 19.4m monthly unique visitors over the first six months of 2020, which represented growth of 118% year-on-year said Future.
Revenues were US$3.1mln in the year to end December 2019, up from US$2.7mln in the previous year, and have seen significant growth this year, said Future.
Future said it currently has around 46mlm online users in its TV & Film and Games & Entertainment verticals, most of which are in the US and the acquisition will enable it to accelerate the development of its Whattowatch.com channel.
Cinemablend will be able to use Future’s proprietary technology platform, including its price comparison system Hawk, it added.
Zillah Byng-Thorne, Future’s chief executive, said: "CinemaBlend is a great cultural fit for Future, producing content we are passionate about.
"The acquisition materially expands our market share within the TV & Film and Games & Entertainment verticals in the US, and provides us with a range of opportunities to continue to drive the brand's growth organically by leveraging our proprietary technology platform."