A martini with no olive is brought to Treadwell's table. After a cutaway shot, the missing olive appears in the martini glass.
The aircraft shown in the show is a Boeing 727, but the interior configuration is incorrect. If the passengers are in coach, then the 2 seats on the left side of the aisle and three on the right are wrong because on the 727 there were three seats on each side. If they are in first class, there should only be two seats on each side of the aisle.