Romantic comedy about a bookstore clerk (Jenna Mattison, who wrote the script) who is granted three wishes after she finds a rare first-edition novel. Sean Maguire, Armand Assante. Directed by Shelley Jensen., The family friendly film The Third Wish stars Jenna Mattison as Maggie, a mousy book store employee who believes she has earned three wishes from an obscure book by Charles Dickens. She does not realize that there is a powerful person pulling the strings to make her dreams come true., A bookshop clerk comes across a first edition of Charles Dickens’ Great Expectations, and is given three wishes as a reward.