When WD-40 is parachuting onto the island at the beginning, he throws a match through his parachute. As the shot changes, you can clearly see the smoke canister that was producing the effect of the parachute being on fire, swinging from beneath the canopy.
When Dick Steele rides the horse into the elevator, the two people already in the elevator are Loren Janes and his wife Ginger. They both appeared in the movie "True Lies" which is parodying the scene portraying the same couple in the same situation. Loren Janes even provided the stunts for this movie too.