ATSV would have been a very bad comp for Dune 2. ATSV was very back heavy vs Dune being front heavy in sales. If ATSV comp was 8M say 3 days ago, it would now probably be around 6.
For context, MiniTC2 ATSV comp
The fall in last 3 days for ATSV is pretty huge. Oppy fell because it was helped by Barbenheimer, the best comp being Avatar 2 for trend purpose.
Though for overall comp, Oppy probably is best being PLF heavy and did strong in Canada too.