i recommend:
Ai Ore! Love Me!
High School Debut
Bokura ga Ita movies
High School Debut
Kimi ni Todoke
Memoirs of a Teenage Amnesiac
Kanojo wa Uso Wo Aishisugiteru

Kids
Boku wa Tomodachi ga Sukunai
Usagi Drop
Kuroshitsuji

Pretty much all the japanese movies I've watched are anime related xD
Koizora: The Movie - Oh my gosh, this movie will make you cry buckets (maybe I'm just extremely sensitive) 
I recommend: Nada Sou Sou, Takumi-kun series (I don't know if you like yaoi, or not), Swing Girls, Kimi ni Todake.
Swing Girls
Tennen Kokekko (Gentle Breeze in a Village)
Kirishima Bukatsu Yameteruyo
Battle Royale
Confession
Linda Linda Linda
Night Time Picnic
Halfway
Tabidachi no Shima Uta (Leaving on 15th Spring)
Himizu