In her final onscreen appearance, The Incomparable Whitney Houston, stars in Sparkle. A movie based loosely on the legendary group, The Supremes. Whitney is also named as the executive producer of the film. After her untimely passing, the director and others involved with the film, wanted to work quickly to get it prepared for release, in an attempt to make sure no leaks happened with the film. The movie also stars, American Idol winner Jordin Sparks, Derek Luke, Mike Epps, Cee-Lo Green, Tiki Sumpter, Omari Hardwick, and Vicki Winans. It's slated to come to theaters 8/17. Check out the trailer.