Comparison between the Theatrical Version (on the German Blu-ray by Universal) and the Naughty Cut (on the American 4K UHD/Blu-ray combo by Shout! Factory).
In 2007, director Michael Dougherty took on Halloween with Trick 'r Treat, and a few years later he turned his attention to the Christmas season in Krampus. The titular creature of terror is common in the Alpine region from southern Germany to northern Italy and served as a template for the American producers for a nice little horror comedy. Rated FSK 16 in Germany, they were going for a PG-13 in the country of origin. So you didn't have to expect too much gore or other tastelessness...
...but in 2021, an announcement in the US surprised: on the 4K UHD premiere, a "Naughty Cut" is available since 07 December 2021. The combo pack with Blu-ray and 4K Blu-ray contains a nearly 4.5 minutes longer version. Upon closer inspection, however, this proves to be quite unspectacular. The difference in runtime is mainly due to material that was already known as deleted scenes from the bonus material of the old releases. Just two raunchier lines of dialogue can be found, which may have been too much for the American rating at the time. The attack on Beth is longer by a rather insignificant moment.
All in all, it's hardly worth mentioning in terms of what version you watch. Still: Qualitatively, the 4K Blu-ray is the best choice and also has new bonus material on board. In addition, the relationships of some characters seem a little more rounded through the re-inserted dialogue scenes. So, in the end, it's still recommendable for fans.
Runtimes are ordered as follows: Theatrical Version Blu-ray / Naughty Cut Blu-ray
14:47-14:52 / 14:47-14:53
An alternative take of Sarah warning Aunt Dorothy a little more drastically.
Theatrical Version: "For your sake, just...stay the hell outta my kitchen!"
Naughty Cut: "For your sake, just...stay the fuck outta my kitchen!"
Naughty Cut 0,4 sec longer
The time difference is recovered shortly after.
22:32 / 22:32-22:33
A shot of the parents is insignificantly longer.
22:34 / 22:35-22:46
Before Sarah gives in and lets Beth go, Aunt Dorothy comments, "You know, you kids don't have a damn bit of patience. When I was your age, I didn't hear from my boyfriend for two years while he was off fightin' Charlie."
27:11 / 27:22-27:26
As Beth is attacked, the van is seen wobbling in the Naughty Cut for a much longer time.
28:53 / 29:08-29:19
Before Tom and Sarah come in, Aunt Dorothy is seen groaning once again, "I'll tell you what. If I was a bum freezin' on the street right now, I'd just-- [clicking] end it."
Linda: "Christ, Aunt Dorothy!"
Dorothy: "What? Even on a nice day you wonder why they bother."
30:29 / 30:56-30:58
The scan on the radio starts a little earlier.
30:40 / 31:08-31:33
Again the radio, then a little announcement from it as well as a comment from Howard. There's a little inside gag hidden here, by the way, because Warren Valley is a fictional place from Trick 'r Treat.
Radio: "...a blizzard warning for the entire Central Ohio area, including Franklin County, Delaware County, Ramona Falls, and Warren Valley. With temperatures reaching minus 20 degrees, residents are urged to avoid travel and seek shelter immediately."
Howard: "Amen to that!"
Radio: "This has been a recording."
Lastly, the frontal shot of both a little earlier as well.
33:11-33:17 / 34:05-35:47
The Naughty Cut has much more dialogue between Sarah and Linda. The warm relationship between the two sisters comes out better this way.
Linda: "You always do everything right."
Sarah: "No! I'm just really good at making it look like 1 do. Most days I wake up with one hand on the panic button."
Linda: "Come on! I mean, you've got everything! I mean, your house looks like one big SkyMall catalog."
Sarah: "Yeah, but with Tom traveling and, uh, Max always holed up in his room doing whatever it is boys do, and Beth spending all her time with Derek... I mean, things can get a little, I don't know, quiet."
Linda: "I'm sorry, it's just... The grass is always greener, you know? I mean, I'm three years younger and I've managed to squeeze out twice as many kids. Oh, yeah, do that math, right?"
Sarah laughs; "Hmm, I know. You guys always seem so... happy, like you could care less what anyone else thinks."
Linda: "Are you jealous?"
Sarah: "No, no!"
Linda: "You're jealous!"
Sarah: "No, I only... It's just nice to have you around, that's all. Grandma, try not to use up all the firewood, okay? We need to make it last."
Omi grumbles in German, "Now stop it."
Sarah rolls her eyes.
In the Theatrical Version, here are two more shots of Linda and Sarah instead as the conversation winds down.
Naughty Cut 96.2 sec (= 1:36 min) longer
56:12 or 57:12-57:56 / 58:40-60:50
After an icy exterior shot, here is another longer extension. First, Max is additionally seen sharing his Halloween candy with cousins Stevie and Jordan; "It's from my Halloween stash."
The family is then seen tensely pausing in the living room.
Sarah: "Think you'll be all right for a minute?"
Sarah: "Okay. Love you."
Jordan: "We need to talk to Grandma about what's going on."
They go to her and Stevie says, "Omi, can we ask you something?"
This is already followed by the scene with Tom and Sarah, where the former prepares a map as an escape plan. In the Theatrical Version, this comes unchanged a minute later (before Linda looks at the presents). Not illustrated.
In the Theatrical Version, only the follow-up shot here (tracking shot from the Christmas tree over to Linda) starts a few insignificant frames earlier for this.
Naughty Cut 85.3 sec (= 1:25 min) longer
57:06-57:10 / 61:44-61:47
Aunt Dorothy expresses herself a little more flowerily.
Theatrical Version: "Because I'm old enough to know when life is coming at you with his pants down."
Naughty Cut: "Because I'm old enough to know when life is coming at you with his dick out."
Note: Interestingly, this comes just a few seconds after she also used the nasty F-word ("She says we're fucked") in the Theatrical Version.
Theatrical Version 0.3 sec longer.
60:24 / 64:17-65:02
So Max is turning around, where you can see grandma. Then he looks ahead again.
Some dialogue ensues between the cousins.
Jordan: "Hey, Stevie?"
Jordan: "I think Aunt Dorothy clogged up the shitter."
Stevie: "So use the one upstairs. What, you afraid to go by yourself?"
Stevie: "Jesus. Come on."
Then Tom and Linda discuss something else.
Tom: "The plow is only three blocks away."
Linda: "Three blocks is gonna feel like three miles in this mess."
Howard: "And what about that thing under the snow?"
Tom: "We hurt it once, we can do it again."
At this, Linda looks around anxiously in the direction of the air shaft.
60:32-60:34 / 65:10
The Cousins are seen a bit longer in the hallway in the Theatrical Version. Here, as well as in the contained part just before, some dialogue was removed between the two. Here in short form the thing with the clogged toilet from the previous extension is dealt with.
Stevie: "I can't believe you're afraid to come up here by yourself."
Jordan: "It's not my fault Aunt Dorothy clogged up the crapper."
+ 2.1 sec
60:37-60:40 / 65:13
The following two shots were also shortened. Still the same reason: the dialogue between them was shortened and moved.
+ 3.7 sec.
Note: In minute 67/72, Howard choppily says "Merry Christmas, mother--"
Similar to "You gotta be---kidding me" just before, these were quasi-obviously left blank moments where one would otherwise expect the F-word. However, it was probably too clumsy for the makers of the Naughty Cut to correct this again.
The same happens also shortly thereafter in minute 69/74 at "Hey! Give me back my kids, you...fudger!"
After identical credits, the Naughty Cut has a logo of Universal.