and in comes Daniel Deterrent..

I have always felt that Crouching Tiger, Hidden Dragon is the perfect film. The ratio of action, romance, drama, etc is just a perfectly balanced mix in my eyes. It’s been my favorite film since I first saw it in the theater.

Great summary

It's not my favorite movie, but I think Braveheart is close to perfection. Great acting, awesome battle scenes, emotional moments, memorable lines, fantastic soundtrack.

Two films that immediately came into my head when I asked myself this were:

Joker
Prisoners (Hugh Jackman & Jake G.)

Jaws is probably the closest to perfect for me. Every major category a film is based on was spot on.

Pan's Labyrinth (2006)

Very difficult to say what a "Perfect Movie" is, but I had thought about this a lot in the past and figured these are the most "Perfect Movie" (I define that by basically saying I can't imagine changing a single thing in these movies, and feel that every time a decision had to be made, it was the right decision; best example is Fargo; I can't imagine changing a single thing in that film, even the Mike Yanagita scene, which I at one time felt was superfluous, but now I kind of see how it fits in the movie, and can't imagine the movie without it). Most of these movies have already been mentioned, but oh well:

Fargo - If I only had to pick one, this would be it. Perfect in every way, in my mind. I went through a phase in high school (when I only had it on VHS; DVD wasn't even a thing back then) where I would literally watch this every night for like two or three weeks straight, sometimes even watching it and then immediately rewinding it and watching it again (the quality of the VHS degraded pretty quickly due to this). I was studying the film...

The Big Lebowski
The Goonies
John Carpenter's The Thing - This would've been my second choice after Fargo. Just a perfect movie all-around. Excellent script, excellent direction, wonderful lead actor and cast, great music, killer scenes and just an awesome ending...
John Carpenter's Halloween
John Carpenter's The Fog
The Godfather
The Godfather Part II
Jaws
Star Wars: Episode IV - A New Hope
Star Wars: Episode V - The Empire Strikes Back
The Shining
Romancing the Stone
Mulholland Dr.
All the President's Men
The Wild Bunch
Pat Garrett & Billy the Kid
North by Northwest
There Will Be Blood
Magnolia
Boogie Nights
Affllction
Zodiac
Heat
Seven

I would've said Butch Cassidy & the Sundance Kid, but I always detract at least a point on that one because of the Burt Bacharach song. I just can't get over that scene and feel it is completely unnecessary, only put it in for commercial purposes. You take that out of the movie, and it's pretty much perfect. But with it in there, I just end up rolling my eyes every time that scene pops up...

Back to the Future: from beginning to end, it's absolute perfection. There's not an ounce of fat, not a bad performance, every shot is impeccable.

Punch-Drunk Love
Miller's Crossing

I’m watching Pulp Fiction for the umpteenth time and am simply entranced. Engulfed in every word spoken, each action taken. The rich characters. The amazing dialogue. PF comes close, for me, as a perfect film.

I'm surprised it took so many years for someone to mention Jaws.

Surprised there isn't more love for The Shawshank Redemption.

From my list

The Lord of the Rings trilogy. Perfect movies.
ESB I'll also add ANH.
The Dark Knight
The Sound of Music
Mary Poppins
Rear Window

It was mentioned by a few of us back in 2014 when this thread was started.

Almost Famous

The problem for me is the tendency to watch films I've seen many times and enjoyed over the decades only to start picking them apart narratively as I get older. CASABLANCA (1943), for instance, often cited by older fans as the perfect movie. Recent viewings, however, have me shaking my head over how big a baby Rick (Bogart) is, crying in his Scotch just because Elsa (Ingrid Bergman) showed up out of the blue. The fact that she's married to a renowned freedom fighter who's ducking the Nazis should have given him a clue that maybe there was a back story much bigger than his fling with Elsa in Paris. Instead of whining and casting aspersions on her when she comes to see him privately, he should simply have asked, "Hey, what happened? Why'd you leave Paris so suddenly and what's Victor Laszlo got to do with it?" Then she explains it and he goes, "Okay, that's understandable, but I wish you'd have let me known." Elsa: "How could I do that? The Nazis were watching our every move. If I'd so much as mentioned Laszlo to anybody, the Krauts would have been on our ass like white on rice! What, are you stupid or something? What is it with Americans?"

Of course, my version would not have made it the beloved, legendary classic it's become.

I find myself rewriting a lot of classic films like that, e.g. KING KONG, IT'S A WONDERFUL LIFE, HIGH NOON, PSYCHO, even THE SOUND OF MUSIC, all to protect certain characters that I feel needed protection. In each case, my rewrites would have consigned each film to oblivion.

If I had to pick one, I'd first narrow it down to three of Hayao Miyazaki's masterpieces: MY NEIGHBOR TOTORO (1988), LAPUTA: CASTLE IN THE SKY (1986) and KIKI'S DELIVERY SERVICE (1989). If I was forced to pick one, it would be TOTORO.

Whoops my bad

Without reading through the thread (hell I probably already said) Alien is perfect in my estimation. Also going to add The Fall which I saw for the first time last November.

The Wizard of Oz
Casablanca
High Noon
The Godfather
Raiders of the Lost Ark
The Shawshank Redemption
Pulp Fiction
Toy Story 1-3 (I cheat)

I would like to include Saving Private Ryan, but I cannot overlook the casting of Ted Danson for that one scene.

You were able to overlook the overwhelming schmaltziness though?

It's tough for a movie to move me emotionally, so when it does, I give it up for it.