Continuity mistake: When The Squad crosses the river the footage is cut footage from a previous episode, "Birthday Cake" - Littlejohn is holding his cake over his head. (00:05:15)
The Steeple - S3-E21
Other mistake: The Squad descend from The Steeple via the bell pull rope but the bell does not ring. (00:42:15)
Continuity mistake: During the night's shelling Kirby escapes into the woods, but in part of that run sequence it looks like Saunders is doing the running, and it is daytime to boot. (00:11:00)
Continuity mistake: The room that is being used is downstairs from road level, but a window in the room shows tree top level scenery. (00:41:15)
Mountain Man - S3-E1
Revealing mistake: When Saunders and his men escape from the Germans, it's supposed to be after sundown. But the entire chase scene that follows is filmed in broad daylight. (00:19:20)
Mountain Man - S3-E1
Revealing mistake: As the German chases Cage, there are multiple ski tracks in the snow from previous takes. (00:35:35)
Factual error: The planes Hanley identifies as Messerschmitts aren't. They're stock footage of U.S. P51 Mustangs.
Continuity mistake: Season 3, "The Little Carousel": In the land mine scene, Anderson's helmet disappears and reappears repeatedly between takes.
Visible crew/equipment: Season 3, "A Rare Vintage": In the scene inside the winery, a cameraman's shadow intrudes at the left of the shot.
Revealing mistake: Season 3, "The Imposter": During the march, Rick Jason slips and says, "Peabody! Bring up the rear!" He was supposed to say "Littlejohn." Peabody is the actor's real name.
Continuity mistake: Season 3, "The Long Walk": Near the end, the wine bottle Saunders is holding switches hands between shots, then vanishes.