No over-thinking, no spreadsheets, no calculations, just hit me with a top 3 for each topic on instinct alone.
This Is Spinal Tap
Wayne’s World 2
The Blues Brothers
Just missing out:
High Fidelity (yeah this counts deal with it)
Almost Famous
The Commitments
High Fidelity
Scott Pilgrim Vs The World
Wayne’s World 2
A star is born (2018)
A star is born (1976)
A star is born (1954)
Spinal Tap
Eddie and the Cruisers
Hedwig and the Angry Inch
Waynes world 2
Spinal Tap
School of Rock
Tough category
That Thing You Do
Josie And The Pussycats
Once
but it’s obvs Spinal Tap
Ooh Empire Records just misses out…cos its shiiiiit
IRISH SPECIAL:
The Commitments
Sing Street
Frank
If this isn’t an imagined alt career of The Frank & Walters, I’ll be devastated.
Sadly not!
But directed by, starring and music by Irish lads so…
Ohhh it’s the ‘inspired by’ Frank Sidebottom one, innit. Good shout.
Gonna start that F&W screenplay right now.
After All someone should…
Spinal Tap
Eden - not sure how well known it is, I caught it on the off chance and loved it, set in the French House scene of the 90’s into 00’s, top soundtrack
Lover’s Rock (Small Axe) - possibly not valid as it was screened on tv but wonderful stuff and it’s still on iplayer. Silly gaaaaaaaaaaaaaaames 
working title: “After All”?
School of Rock
Almost Famous
The Commitments
Umpire is still undecided about Wayne’s World being about music just fyi
This is Spinal Tap
A Mighty Wind
Bad News
2 surely is. It’s all about them setting up a music festival, and his girfriends career as a musician distancing them.
1 maybe a lot less so. Albeit meets his girlfriend a musician etc.
School of Rock
Only Lovers Left Alive
Tár
He goes in a guitar shop, too.
NO STAIRWAY!