The first official trailer for Mamma Mia! has been released online, in addition to an international trailer over at YahooUK. You can either watch the trailer above, or head on over to Moviefone to see it in glorious HD. Ah, that music. I'm sorry, but this little gem holds a special place in my heart. After seeing it a whopping four times on Broadway, my parents finally dragged my sister and I to see it one Mother's Day. Long story short; I've seen it twice now, and wouldn't mind seeing it again. But will all that magic translate to the big screen? I hope so. The trailer looks like a lot of fun; we have huge dance numbers, lots of singing and plenty of pretty blue ocean. Starring Meryl Streep, Pierce Brosnan, Colin Firth, Stellan Skarsgård, Julie Walters, Dominic Cooper, Amanda Seyfried and Christine Baranski, Mamma Mia! was written by Catherine Johnson and directed by Phyllida Lloyd (both of whom brought us the staged version). Tom Hanks and Rita Wilson serve as executive producers. Cinematical brought you the first official photos from the film yesterday; Mamma Mia! looks to entertain moviegoers (as Hairspray did last summer) when it arrives in theaters on July 18.