Movie with chemical that brings paintings to life

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-- this movie wherein a couple of guys accidentally create a chemical that, when poured on a picture, will bring that picture to life.

I remember they tried it first on a centerfold, but they put too much of the chemical and she turned out to be like a 10 foot tall savage amazon.

Next try they put less chemical, but it turns out they put too little -- the girl's face was skeletal and downright horrifying.

they tried it and tried it over and over again, always messing it up; they were so scared of what monstrosity they'd create next that at the attempt that they would get it right, they hid in the bathroom I think; then this guy comes into their apartment and stumbles upon the perfect girl they had created -- apparently the creature falls in love with the first man it sees.