Several of the equipment units in the command tent are actually vintage (50s) Hewlett Packard signal generators with cool blue lights added.
Colonel Mitchell drives a 1966 Mustang 2 + 2 Fastback.
The beer that General Landry and Colonel Mitchell are drinking is Red Stripe, a popular Caribbean beer brand, by Desnoes & Geddes. It is a pale lager.
Beau Bridges, as General Landry, objects to a comment about a fat kid because he was "chunky " as a child. In fact, Bridges, who was a child actor as early as The Red Pony (1949), was a slender child.