Peck+Hepburn (Meta)

And just in case anyone asks, I'm allowing the answer XXX, too: you get 30 from adding up all of the clue numbers anywhere in HO+LID+AY. I was hoping someone might notice why XX (and to a lesser extent XXX) are "appropriate" answers for an Italian-themed puzzle. ;-)

I think there wasn't any reason to add the clue entries. To do peck+Hepburn implied to add a number related to the actors and to add two of them. Sure the clues had numbers but even with the title there was no compelling reason to add them. I figured we needed to get the word ROMAN in the same way we did to get HOLIDAY and we get that by replacing LID with M to get the RO of 2D and the AN of 4D to spell ROMAn. Then the answer would be ONE THOUSAND as that is won't the Roman numeral M is.

Also I thought Roman numerals would be an earlier step. Not the last.

Coming back here - got distracted! I saw the movie, saw all the parts of Holiday in the puzzle. What stopped me was a very picky point (former math teacher here, sorry!) -- to me, the I, V, X, L, C, D, M are Roman numerals. And 2 and 0 are numerals e.g. But 20 is a number expressed as a combination of two numerals. Similarly, XX to me is a number expressed in Roman numeral notation. Since the answer wasn't the missing letter (M) and I tried the remaining Roman (and Arabic, just to be sure) numerals, I gave up and saved it for later. And got distracted. Anyway, I'm not here to say you're wrong or anything, just to say that there may have been others who thought about it the same way, so it may help to know what stumbling blocks people have come across. Really enjoy your puzzles, and this was great, but I couldn't get there!