Each theme answer is a movie title revised to incorporate a poetic term hinted at by the poem in the clue. To help non-English majors along, I've given actors' or directors' names as well. The write-up on my JeffsPuzzles site, which I'll post on Sunday 10/9, explains the terms.
Jeff Linder
JeffsPuzzles.com
PuffinlessTravel.com
It-Could-Be-Verse.com
ESPN investigative reporter Thompson (more generally, a nickname for Letitia)
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Orizzontali
1A
ESPN investigative reporter Thompson (more generally, a nickname for Letitia)
5A
Spread
10A
Current-day alternative to 12 Down
13A
Box lunch?
14A
"The Rest Is ___" (Alex Ross book about 20th century music)
15A
Const'l change killed by Phyllis Shlafly
16A
Heed
17A
Shaq
18A
Gore follower?
19A
*Two poets, one a slob, one neat/Share quarters 'bove a New York street (Think Oscar and Felix)
22A
Info characterized by "variety, volume, and velocity"
23A
Ring battle
26A
Sleek, for short
27A
*In Oregon four bards search through the woods/Encounter junk man, leeches, even hoods/Discover body but to no avail/They'll get in trouble if they tell their tale (Think River Phoenix, Wil Wheaton, Kiefer Sutherland)
32A
*With "The" and 36 and 43 Across: In Zubrowka a rich woman dies/Leaving all that she owns to Ralph Fiennes (Think Wes Anderson)
34A
Average
35A
Pampering place
36A
See 32 Across
39A
Eqpt. to which "screen time" originally referred
42A
The "H" in HOF
43A
See 32 Across
48A
*Unstressed humanity lived life so sure /Til plague killed many and transformed the rest/Save one brave man whose blood contained a cure/His sacrifice our poets oft have stressed (Think Will Smith)
52A
Poor, as an excuse
53A
Jail:clink::gaol:____
54A
Ideal
56A
*Takes place in Russia a cent'ry ago, tells of/Yuri and Lara, their love and the snow, makes us/Ask whether Tonya's their daughter - you know? nor do/I (Think Omar Sharif and Julie Christie)
61A
Express pleasure like a pup
63A
Word before Whiz or -It in the grocery store
64A
Fashionable city?
65A
DDE
66A
Basic swimming stroke
67A
"The ___ of my ___ is my friend"
68A
Sin/cos
69A
Prize
70A
Former Congolese President Mobutu ___ Seko
Verticali
1D
Better-versed in a STEM field
2D
Acura model
3D
Used to be taller
4D
Acura parent
5D
Winter transport with tank-like treads
6D
Hawaiian concept of righteousness; also an MP3 alternative championed by Neil Young
7D
Place
8D
Stat
9D
Check for an echo, maybe
10D
Bones and boxes, e.g.
11D
Beats by ___
12D
Older alternative to 10 Across
13D
Carrier for Louisville Sluggers
20D
Drying out woes
21D
Wane
24D
Judge Judge's ABs
25D
Liquid gossip?
28D
Sufficient and more
29D
Name Ere Elopment could be its backronym
30D
Some food deliveries, for short
31D
Coll. of poems, often
33D
Kids' author whose name sounds like a kid's toy
37D
"I'm afraid not, Angus"
38D
It usually precedes trig
39D
Frank McCourt memoir
40D
Kind of vessel
41D
Iota
44D
Most common mineral in Earth's mantle; its normally green color (hint hint) ecomes yellower in its gem form, Peridot
45D
Treats cooked in leaves
46D
It's played using software that imitates other platforms, for short
47D
Snicket of kid lit
49D
Item generally graded on an A-D scale
50D
Hose attachment that's one letter off from a sign of attachment
51D
Expert on health care for underserved communities, perhaps
55D
What x might mean
57D
Mir letters
58D
Via, informally
59D
525,600 seconds, per "Rent"
60D
Ross McDonald's Archer and Sesame Street's Zealand