MILES TELLER and his girlfriend were at the beach in Miami over the weekend, when he noticed a pregnant woman and her young child struggling in the water nearby. He sprang into action, helping them to shore and taking a few minutes to make sure they were okay. Several websites are reporting that the woman and her child were caught in a riptide. But according to a post from Teller's girlfriend, the woman may have panicked because she thought she saw a SHARK. Teller plays Mr. Fantastic in the upcoming "Fantastic Four" reboot. You may also know him from "Whiplash" and the "Divergent" movies. (Here are some pictures of his real-life heroism.)