If the ‘another artist’ you’re referring to is Ralph Bakshi, who did he animated LORD OF THE RINGS, that wasn’t really later. It came between the two Rankin Bass TV Tolkien films- and they were in production simultaneously. But there were many, many things wrong with that RETURN OF THE KING. I contributed to a blog review of the film here: http://home.netcom.com/~zmoq/pages/ROTK_RB2.htm
If the ‘another artist’ you’re referring to is Ralph Bakshi, who did he animated LORD OF THE RINGS, that wasn’t really later. It came between the two Rankin Bass TV Tolkien films- and they were in production simultaneously. But there were many, many things wrong with that RETURN OF THE KING. I contributed to a blog review of the film here: http://home.netcom.com/~zmoq/pages/ROTK_RB2.htm