It would be silly to ask what the highest grossing film of all time (U.S.) starting with the letter “D” was (assuming the title can start with “The”). So I’ll ask, what’s the second highest grossing D movie of all time and what’s the highest grossing D movie if it can’t start with “The”?
I’ll give you a hint; they’re two different movies.

The Da Vinci Code &
Dr. Seuss’ How the Grinch Stole Christmas.