Yeah, it was a flop at the movies. Fox Animation Studios didn't know whether they should cater to kids or hardcore sci-fi fans, and ended up scaring away both groups.A random person said:From what I've heard (haven't seen it, but my friend has it in his comically large movie collection), it was when Don Bluth momentarily got out of his 90's rut, albeit with some help from Joss Whedon. It also tanked due to the ever-menacing animation age ghetto, sadly.
Its become somewhat of a cult classic in recent years, from repeat showings on Teletoon and other channels.
It is definitely one of Bluth's better films.