There aren't too many movies over 2.5 hours long that are in the mystery genre, but some do get lengthy, like A Fugitive from the Past and Out 1.
While every Hayao Miyazaki movie is amazing in its own way, some go even further and feel masterful, like Princess Mononoke and Spirited Away.
The only actors I recognized were Jeremy Piven who was obviously brought in for marketability purposes (he’s only in it for ...