Tomorrow (April 22) is Earth Day. You could spend it fantasizing about making out with Al Gore in the backseat of a hybrid while a CD of dolphin sounds plays on the stereo. Or you could watch dolphins, sharks, whales, seals, diving birds, and humans compete for prey in the frigid waters of the Indian Ocean in Wild Ocean, an IMAX film opening at the Fort Worth Museum of Science and History’s Omni Theater. The movie screens daily through the fall. Tickets are $6-7.