Northwest Passage

There is an alternate International Pilot which is a self-contained version of the episode that contains twenty minutes of extra footage that solves the murder. This version was filmed for international release and also in case the show was not picked up as a series.

When Cooper examines Laura's body for the first time, he turns to a doctor and asks him to leave him and the sheriff alone with the body. The actor, mishearing the line, replies "Jim" - his name. Cooper pauses for a moment and repeats the question and the actor apologizes and leaves. According to commentary on the 2007 DVD release, this was a genuine blooper but director David Lynch liked the surreal moment and kept it in the finished product. According to the same commentary, the flickering fluorescent lights were genuinely malfunctioning but Lynch felt it helped the scene so chose not to replace the lighting.

Early home media releases and overseas airings distributed by Worldvision visually plastered the early Lynch/Frost Productions logo (used only on the pilot) with the regular version, but retained the audio from the original logo. As the original logo only had a brief electric sizzling sound effect, it caused the plastered logo to only have a sound effect for it's initial period before abruptly falling into silence. Subsequent releases have restored the original logo.