Irony

All my kitties had stinky butts, as in toxic farts, which the vet attributed to the food I was feeding them. They all seemed to have picked up a tad of what killed Mongoya. They have been pampered. I bought the Science Diet for Sensitive Stomachs. The good news is... they're not pooing as much and no toxic farts. Bad news is... its because they're upchucking. "That's whatcha call ironic." Kudos to whoever can tell me what movie that is from.