Animated movie where the rat/mouse turns evil

Some time after the Mousekewitz's have settled in America, they find that they are still having problems with the threat of cats. That makes them eager to try another home out in the west, where they are promised that mice and cats live in peace. Unfortunately, the one making this claim is an oily con artist named Cat R. Waul who is intent on his own sinister plan.

When the diabolical Professor Ratigan kidnaps London's master toymaker, the brilliant master of disguise Basil of Baker Street and his trusted sidekick Dawson try to elude the ultimate trap and foil the perfect crime.

Decades since their successful television series was canceled, Chip has succumbed to a life of suburban domesticity as an insurance salesman. Dale, meanwhile, has had CGI surgery and works the nostalgia convention circuit, desperate to relive his glory days. When a former cast mate mysteriously disappears, Chip and Dale must repair their broken friendship and take on their Rescue Rangers detective personas once again to save their friend’s life.

A widowed field mouse must move her family -- including an ailing son -- to escape a farmer's plow. Aided by a crow and a pack of superintelligent, escaped lab rats, the brave mother struggles to transplant her home to firmer ground.

The rats and mice, made intellectually superior in the original Secret of N.I.M.H., return to Thorn Valley to groom their destined leader - young Timmy Brisby.

A young mouse, mole and hedgehog risk their lives to find a cure for their badger friend, who's been poisoned by men.

With Once Upon a Forest, Luc Jacquet invites the spectator into a never-before-seen world of natural wonder and staggering beauty. “For the first time, we will be able to watch a rain forest growing before our eyes…Only cinema can offer this unique voyage into a completely untamed universe, a world of perfect balance in which each living thing – from the smallest to the largest – plays an essential role. The film will deliver a complete sensory immersion in the primaeval splendor of one of nature’s richest mysteries, inviting the audience to enter, discover and marvel at a universe of untold treasures while joining its voice to the ever-growing awareness of the need to preserve our world.”

Porky has a particularly menacing mouse in his house; after his traps, and an increasingly nasty set of cats all fail, Porky builds a robot cat. This cat proves to be a much bigger challenge for the mouse, who ultimately builds a robot mouse packed with explosives.

Animation movie about a masked mouse hero, created by Leo Ortolani and directed by Mario Montigiani.