Lets say I wanted to copy an advert - the Smash advert from the 80s with the martians.
If i were to commission a drawing of a similar type of martian and had a similar 'story' but for a different product (eg back in the 20th century they used keyboards to control computers - instead of talking to them) - to promote a new computer interface, is that breaking any type of copyright law?
No expert but reading quickly it appears for artistic copyright it comes out of copyright at the end of the first year it was used (in public) - you got 40 years or so to wait - but I may be wring