The film only opened with $130 million worldwide, which is less than the $139 million that the box office bomb The Flash managed to earn. Furthermore, the Indiana Jones sequel is said to have cost more than $300 million to make with marketing costs, while The Flash was estimated at $250 million. Either way, both films appear to be box office bombs, with the fifth Indiana Jones film making even less at the box office so far.
On their own right yes, I'll give it at. They utterly utterly fail as an adaptation though. Dune is a bit zany, theatrical and psychedelic. They're good if taken just as movies on their own but the vibe is soooooo wrong for Dune.