The phrase "footage monster" refers to a person, usually in the entertainment industry, who collects or produces a large amount of video footage. Full definition
Remember way back in 2008 when one found footage monster movie temporarily rocked theaters? (decider.com)
The found footage monster film earned over $ 170 million on its way to critical and commercial acclaim. (decider.com)
Starting off as a viral - marketing found - footage monster film, it eschewed the conventional sequel and - after an eight - year gap - instead pivoted with 10 Cloverfield Lane into being an anthology series featuring twists on classic sub-genres. (screenrant.com)