It’s not a good film, but surprisingly it manages to be more enjoyable than you might expect considering its shortcomings... and it certainly does a better job than *'Casper: A Spirited Beginning,'* which deserves recognition for that alone. *'Casper Meets Wendy'* seems to borrow elements from the 1993 movie *'Hocus Pocus,'* and that’s actually a good thing; the sections of the story involving the three witches an…