“UglyDolls” is less a movie than an infomercial for the plush Hasbro toys designed to be “ugly” in a commercially cute, lovable way. Unfortunately, the script is not particularly cute or lovable, just a muddled story with lukewarm musical numbers that takes pieces from better films like “Toy Story,” “Monsters Inc.,” “The LEGO Movie,” “Smallfoot,” “Trolls,” and all those other stories about how we should appreciate our own kinds of beauty and the individuality of those around us. It’s not bad. It’s just not very good.