300 trailer: the PG version
By Ransom Riggs

Y'all know by know how much I enjoy mash-ups, especially those of the video variety. And since we here at mental_floss usually choose to endorse PG-rated material, we thought we'd share a particularly clever, "PG-rated" mash-up of the 300 trailer. Check it out:
And if you haven't seen this, what planet have you been on? It's the best mash-up movie trailer ever, which turns The Shining into a romantic comedy: