Here's an update to GOTG3's weekly domestic performance, plus how Across the Spider-verse stacks up to the same films I compared GOTG3 to:
GOTG3 continues to do well for itself domestically, having one of the strongest sixth weeks in the history of the MCU. In nominal terms, its sixth week was bested only by those of Endgame (barely), No Way Home, Black Panther, Infinity War, The Avengers, and Captain Marvel. It continues to have one of the lowest drop-off rates of any MCU film to date, and in absolute terms is well on its way to having the highest post-Week 2 gross of any post-Endgame MCU film besides No Way Home (its gross after just Week 1 will probably fall short of Wakanda Forever's due to that film getting a big boost from the Thanksgiving holiday in its second week). Outside of North America, it has apparently already exceeded GOTG2's lifetime gross in most major markets, with the only notable places it's lagging behind being China and Japan.
Across the Spider-Verse is also doing very well for itself. It has already far surpassed the lifetime gross of Into the Spider-Verse. Like GOTG3, it had a relatively soft drop in Week 2. It will definitely do well over $300M lifetime domestically, possibly somewhere in the $330-350M range. I noticed some unusual behavior it has in its daily box office, namely that it hasn't had the best weekends relative to the other films in the chart, but it has much stronger weekdays, resulting in the weekends having a noticeably lower share of the total weekly gross for its first two weeks. While its opening weekend was noticeably lower than every other movie on that graph aside from GOTG3, its first Monday-Thursday period easily bested all the others. Its second weekday period likewise bested all of the films on the chart, except for Wakanda Forever, which as mentioned got a boost from the Thanksgiving holiday in its second weekday period and third weekend. If ATSV continues to exhibit this behavior, then if its weekends drop off at a similar rate to GOTG3, then the strong weekday periods could actually propel it to a good bit over $350M. It will be an interesting showdown between ATSV and these other films, and I'm sure Sony is more than happy with its performance.