So, with margins of error established, let’s use last night’s $1.4m as the comparative number to Skyfall‘s $2.2m IMAX-only debut. If the films perform similarly, then the Matthew McConaughey/Jessica Chastain/Anne Hathaway/Michael Caine adventure will earn around $57m by Sunday night. Now keeping in mind that the Thursday numbers will go into the till and Interstellar is debuting on nearly half as many screens as Skyfall did before the weekend, I would imagine a push to cross the $60m mark would be in order over the traditional weekend. But of course Interstellar is 169 minutes long and is less of a known entity than Skyfall, which is why frankly I’m pretty comfortable using them as comparison points.