5. Harry Potter and the Sorcerer's Stone (2001)
The first installment in the series is such a nostalgia fest that it almost transcends a traditional ranking. It's the most immediately knowable: lanterned boats on their way to a castle, a snowy owl on a young boy's shoulder, a slobbery three-headed dog, letters pouring in from a fireplace. Even non-Potter fans know the drill. Luckily, Sorcerer's Stone really holds up as an entry point to the series, even with dated special effects.
Harry's introduction to the wizarding world is ours, too, and it comes with a wink and a hug. There's something magical about the small moments, like the Weasleys bustling through King's Cross, searching for a fractioned platform that shouldn't exist. Or Dumbledore chomping at jelly beans on the end of a hospital bed. Or Hermione perfectly levitating a feather, her classmates looking on in awe. The plot may be the most childish of the series -- which, duh, it's about 11-year-olds -- but it's fun to be young again. Sorcerer's Stone is still the real deal, even if lacks the pathos of the later films.