American movies about a comic artist that turnd into a spy I think late 70s
remember him walking into a night club with a cane that is actually a machine gun and he accidently fires it.
there is a scene where he and the girl he loves ride a old camper truck, but once followed by the villains turns the truck is just a decoy and it is actually a lambo or something
This sounds like the Disney film Condorman: http://movies.disney.com/condorman or http://www.imdb.com/title/tt0082199/combined
Condorman (1981) – http://www.imdb.com/title/tt0082199/