An unusual theme of movies that are not silent movies, but that all start with a silent letter. I like it.
I was tricked immediately, because after filling in SAP (1A: Easy mark), I looked at 1D: Beginning or end of "Athena," and wanted "alpha," so that whole quadrant took a little extra effort before I finally gave the two-schwa version of "aha" upon seeing SCHWA! After that, AFORE, PREK, and REMI aren't that great, but they're not terrible, either. Actually, I kind of liked REMI, in an "it makes me think of the Sound of Music, which is set in the Alps, and we were just in the Alps" kind of way...
Icaraus Fob et fils will surely have enjoyed SPINET (47D: Small piano), and I'm sure we all enjoyed CAT (17D: Subject of many a viral video). As I look this over, however, there seems to be a lot of the old stuff, but a few new clues - like the one for ALI (68A: Arabic name meaning "high") (I guessed "ArI" at first), and for our old favorite EEL (34A: Kabayaki fish) (never heard of it). And speaking of things I like, "The Big Lebowski" is my in-flight movie of choice. On the way over, I only got up to the musical interlude (set to "Just Dropped In") before I conked out. I'll see how it turns out on the way back. Anyway, I was happy to fill in JOHNGOODMAN without hesitation.
Favorite clue/answer: 53D: Jet fighter?/SHARK.
Now, MOI, je vais me promener un peu en ville, et chercher quelque chose à manger.