Joseph Kahn, who made some ace music videos in his time (he was even in an episode of Cribs on MTV... 'member that?) has made his own Power Rangers movie, entitled Power/Rangers.
It's 14 minutes long and extremely violent. It also stars James Van Der Beek (who co-writes) and Katee Sackhoff, and is heavy on the action - as you'd imagine. It's also pretty good fun.
Kahn directed the movies Torque and Detention, while his last gig was directing Taylor Swift promo Blank Space.