Neon lights in the West End.
Nice colour footage of Piccadilly Circus at night. Neon lights - advertisements. Also West End theatres and cinemas advertising various plays and films including Dora Bryan in They Don't Grow On Trees, Gina Lollobrigida in Mrs Campbell, Julie Andrews in Star!
Neon signs for Danny La Rue, Bullitt, Barbra Streisand in Funny Girl, Lionel Bart's Oliver, Rosemary's Baby, Empire Leicester Square, Warner, Talk of the Town, other West End Theatres, Saville Theatre, 40 Years On, etc.
See also next item which is similar shots but in black and white.