When Ike picks up his father from the beach the side walk is wet where they are standing but everywhere else it is dry.
When Ike meets Ben poolside. Ben is wearing tanning goggles. Although tanning beds and goggles have been around since the early 1900's. That style of goggle wasn't introduced until the mid 1970's.
Barry Harris's famous piano vamp on Lee Morgan's classic jazz hit "The Sidewinder" plays on two occasions during hotel lobby scenes which emphatically take place on the final day of 1958, but Blue Note first released the record in 1964.