The Hour of the Pig vs. The Advocate
The Hour of the Pig (British video version) is 15 minutes longer than The Advocate (American video version). 12 seconds in a sex scene and a few other minor bits (total of 3 minutes) were cut for the U.S. theatre market when The Advocate was first released on the big screen in 1994, to avoid an NC-17 rating. However, for some baffling reason, twelve more minutes (not particulary sex scenes, more continuity) were cut from The Advocate video when the video was released.
Why? Who knows? Perhaps they didn't realize they were striking prints off an incomplete copy? Or perhaps it was the same fool who put out the incomplete videos of Valmont (another Firth movie that was also released on video missing scenes)?