Check the link:
Cliff Spohn who did a lot of the original 2600 Boxart is getting the credit for the UK Movie Poster for the upcoming movie, "Computer Chess." Someone on here was looking for info on the original box art for the 2600 titles, and this may be another step in tracking Cliff down.
After re-reading the article, this is original art, and not the 2600 Chess Art. But they sure do share the same lineage.