Reality stars sweethearts Zac Efron and Vanessa Hudgens shot a Funny or Die video this week and some of Zac's big screen costars joined them. The two joined Zac's cast members from New Line's '17 Again' and their friends in Hollywood to create a hilarious video to be featured on Funny or Die next week. Adam Shankman -- producer of '17 Again' -- produced and co-directed the video along with Jake Szymanski.Whoa! I like their tandem so much! My niece Keisha Nicole love them both!