Continuity mistake: In the scene where Astrid tells John at the airport that Stuart is dead he cries and hugs her. In reality he began to burst into laughter . Astrid herself said: "He never cried. Not once. He went into this hysterical laughter and couldn't stop. It was his way of not wanting to face the truth." (Lennon- The Definitive Biography, by Ray Coleman).
John Lennon: We're gonna be big Stu, we're gonna be too big for Liverpool, we're gonna be too big for Hamburg, we're gonna be too big for our own bloody good.