Scare the snot out of your kids at the adventure film Sea Rex 3D. The story is narrated by a fanciful young character named Julie, who travels through time to various prehistoric eras, specifically the Triassic, Jurassic and Cretaceous periods. There Julie and the audience explore a wild underwater world filled with the super-scary Liopleurodon, Elasmosaurus and Shonisaurus, creatures who ruled the seas in the time before the dinosaurs. 11 a.m., 1 and 3 p.m. daily. Through September 11. Wortham IMAX, Houston Museum of Natural Science, 5555 Hermann Drive. For information, call 713-639-4629 or visit www.hmns.org. Tickets $9 to $11.
July 28-Sept. 11, 11 a.m., 1 & 3 p.m., 2011