All of the musical performance sections are full of errors due to lip syncing issues and post-production techniques. Most noticeable are the harmonica solo on Justine, where the playing continues when the harp comes out of the sax player's mouth, and the use of the accordion to substitute for the less-easily moved HammondB-3 organ. Almost every shot with performance music has something wrong with it.
The mob of dancing teens marching down to the boat dock just prior to the big boat chase are seen carrying a number of Tiki torches, almost as if they are marching on Doctor Frankenstein's castle. However, the scenes surrounding the boat chase were all filmed in full daylight.