The Animatrix (2003)
Jakob Stegelmann mentions the animated film in his review of Batman: Gotham Knight (2008) (V)
mentions the spin-off
VHS/DVD release reviewed + footage used
talked about, uses clips from
The design of the mech that Amber pilots while fighting in the trenches bears a striking resemblance to the mechs that are used to fight against the machines in The Animatrix.