Earlier this month, I listened to a three-disc set of the Shadows because in Platts'
Times and Seasons, I read the story about an early Zombies gig where Paul Arnold played the bass solo in the Shadows' "Nivram" note-perfectly but on the wrong fret (recalled by Colin Blunstone on pages 29-30), and I discovered that there's a very strong similarity between the introductions of the Shadows' "Blue Star" and the Zombies' "I Know She Will." Both begin with an arpeggiation of the second inversion of A major (although the one in "I Know She Will" is two octaves lower than that in "Blue Star"), and while they have the same rhythm, it falls in different places in the measure ("I Know She Will" has some additional notes in a higher register, too). The two introductions also simply alternate between two figures (excepting the triads in the higher register in "I Know She Will").
Here are the two parts in notation:
"Blue Star":
"I Know She Will" (I put the triads on a separate staff so the other notes are easier to compare with "Blue Star"):
While there's a definite similarity between these two introductions, it may be just coincidence. "I Know She Will" was written by Chris White, and I haven't found any link between him and the Shadows. He joined the band as Paul Arnold's replacement, so he obviously wasn't around for this version of "Nivram," and while Paul Atkinson notes (on page 12 in the Zombie Heaven liner notes and on page 47 in Claes Johansen's Hung up on a Dream) that the Zombies played other Shadows tunes, it's unclear whether White was part of the band then.