In addition to having the first "church in the mall", NORTHSHORE CENTER also had the first "mall twin cinema". The General Cinema Corporation Cinema I & II showed its first features in May 1963.
Photo from

NORTHSHORE CENTER was 10 years old in this depiction. The circa-1958 structure is shown in black. By 1968, the mall had been expanded twice. Sears (in dark gray) had opened in the fall of 1964. A northeast block (in lighter gray) has just been completed. Apparently, the Kiddie Towne area was moved to accommodate the Sears store.