Here are some goofs i noticed in each of the films and bear in mind if they're not exactly in order of the year they were released:
Muppets Take Manhattan (1984):
-During the Saying Goodbye song, Scooter's puppeteer's arm could be seen briefly
-Even though Floyd appears in Kermit's dressing room on the opening night of his hit musical Manhattan Melodies, he is no where to be seen in the next scene. The same goof happens with Janice.
-When Kermit and Miss Piggy enter the church, Crazy Harry, Sam, The Newsman, Pops, Louis Kazzager, and Marvin Suggs, who were on the opposite side of the church switched rows. In addition, Mahna Mahna and The Snowths were replaced by Lothar.
Muppet Christmas Carol (1992):
-During the Scrooge song, One-Eyed Jack appears as a vegetable salesman preformed by Frank Oz, but many scenes later in It Feels Like Christmas, he appears as a British prisoner preformed by Jerry Nelson.
The Muppet Movie (1979):
-Jim Henson's head briefly appears before Kermit walks through the door to Lew Lord's office.
-Kermit's arm sock appears yet again in the last song Rainbow Connection.
Muppet Treasure Island (1996):
-The puppeteer controlling Spotted Dick's movements when Sam says let go aft line can be seen briefly.
-The apple barrel appears a lot bigger inside compared to how it looks outside
-At the end of Cabin Fever, various puppeteers can briefly be seen
-Angel Marie's puppeteer can be seen briefly.
-Dave Goelz, the puppeteer for Gonzo, can briefly be seen during the song Something Better.
The Great Muppet Caper (1981):
-Even though Pops mentions there's no kitchen in the song Happiness Hotel, The Swedish Chef walks out with a pot halfway into the film.
-Muppets who weren't involved with the break-in of the Mallory Gallery appear. Examples in this case include Rats and Louis Kazagger.
-At the end of the film, Statler and Waldorf somehow appear outside the plane, with parachutes on.
Muppets from Space (1999):
-Even though Pepe says there is no bread, Gonzo comes walking in, with a plate with two pieces of toast on it.
It's A Very Merry Muppet Christmas Movie (2002):
-When Bobo says there are carolers outside, Crazy Harry and Dr. Teeth are shown to be excited to hear this, but in the next shot, both characters are nowhere to be seen.
The Muppets (2011):
-At the start of the telethon, Zoot's hat is missing, but then is shown wearing it when he plays his note in close-up.
-After Tex Richman knocks out the power to the phones, Sam is struggling with his phone, but then appears on stage, and then appears wearing nothing.
-After Tex Richman yells at Bobo and Uncle Deadly to tell them to stop singing, the same spray bottle that Bobo had in his hands reappears in his hands yet again.
-At the beginning of Walter's whistling performance, The Swedish Chef appears on stage wearing a tuxedo standing next to the other Muppets. Before the song ends, he is standing behind Mary and Gary in his normal clothes.
During the recreation of the Muppet Show opening, Janice is seen in the orchestra pit, but then appears in the arches with the female Muppets.
A Muppet Family Christmas (1988):
-Frank Oz's head appears for a split second.
Kermit's Swamp Years (2002)
-In the part where Young Kermit, Pilgrim, and Croaker are under the bench, a puppeteer, possibly Bill Barretta moves with Croaker.
Who else noticed the same goofs i did?