Alexandre Aja’s “Piranha 3D” movie has been delayed until August 27, 2010, which is four months later than the original April release date. Set in Lake Havasu, Arizona, the Dimensions Films creature feature has a tremor causing the lake’s floor to open, setting free scores of prehistoric piranhas upon the swimming populace. Oooh, sounds like fun. Starring Adam Scott, Elisabeth Shue, Christopher Lloyd, Dina Meyer, Ving Rhames, Jessica Szohr, Jerry O’Connell, Richard Dreyfuss, and Kelly Brook. Check out some pictures from the film set below. More pics here.