Watch full movie online. I, Claudia is an adaptation of the hit one-woman play starring Kristen Thomson. Claudia is an "official" pre-teen, still reeling from her parents' divorce. Her father is getting re-married, she has a science fair project coming due, and she is in the physical and emotional throes of puberty. Claudia speaks to us from inside the boiler room of her school where she stores all the things that are secret and dear to her. Incensed and incredulous at the adult world around her, she is irrepressibly funny about it at the same time. Some important adults in Claudia's life - her grandfather Douglas, her father's new girlfriend Leslie and the school custodian Drachman - shed light on her situation.