Am i strange for crying?!

Everytime I watch sad movies (such as My Sister's Keeper) I always cry. And not just little tears, I literally cry , cry. And some people perhaps think I'm weird, like they say its sad, but they don't cry. I'm starting to think somethings wrong with me, because no one cries but me, maybe because I saw my cousin die of cancer.... Do you guys think there's something wrong because I cry in sad movies?