Nick Willing, the writer and director, had previously done a direct adaptation of Alice in Wonderland in 1999, starring Miranda Richardson, Martin Short, Christopher Lloyd, and Tina Majorino as Alice.
Hey, It's That Guy!: A cavalcade. Tim Curry appears for three minutes as The Dodo, a resistance leader, and yet managed to get top billing. HarryDeanStanton as the Caterpillar, also a resistance leader. Kathy Bates as the Queen of Hearts. ColmMeaney as the King of Hearts. MattFrewer as the White Knight. Even Alessandro Juliani shows up as the 9 of Clubs. The only relative unknowns are the leads, and even they have afewseries each under their belts.
This troper never saw anything that had Tim Curry in it, yet she still recognised him...
What Could Have Been: An early scene filmed but that only partly made the final cut revealed that the connection between Hatter and Mad March, only vaguely hinted at in the series, was that they were brothers.