It's painstakingly hard to find comprehensive information for older films, which is why I'm so glad the guy who compiled those charts on Amazon, did it via the grosses. But I noticed that, with the exception of a few films, or unless otherwise listed this way, Leonidas Fragias either forgot or simply did not know that many horror films in the 50's and 60's were packaged as double features. For example, he lists
Attack of the Crab Monsters alone, but it really came with another cheesy film entitled
Not of This Earth.
I'm not sure what the policy is on double bills anyway. Does that mean one film is just a 'B' movie shown for free alongside what the promoters would have classed as being the 'A' film? They made it sound like they were advertised as a package deal, of sorts. In that case, the gross would count for both movies. Right?
Hell if I know. I'm still finding films all of the time to add on the wikis, with whatever information I can find out there. I basically found out people on forums listed a lot of double features they recall from their youth, so I had to log into
Variety to check if what they were referring to was what charted in the United States, because I had to be sure they were talking about the North American box office and not the United Kingdom.
It's hard to find records for the UK box office. Surely, somebody did keep a record of that stuff at some stage. But again, hell if I know!
My subscription expires in under a month. I had to pay for an annual subscription because the monthly option limited you to so many searches. So I kept wasting views not knowing what I had to look for.
There's actually really good charts for the 2000s as well, that has 250 films listed. Even Box Office Mojo doesn't do that, but they make you pay to look at information about genres that's just partially available, and not in a comfortable way to look through. But I don't know if I can be bothered saving those pages, because there's too many weeks to search through for all of the years that I did not save. There's well over 50 weeks in a year, so that makes a lot of weeks to browse through in one decade alone. Plus, I keep forgetting what page the charts are on, and my Internet is also slower because I connect with Wi-Fi using my mobile data, because I no longer have broadband.
https://archive.org/search.php?query=creator:"Leonidas+Fragias+(Arts+&+Charts)"