“Starting the week off right!” Rebel Wilson wrote in the caption of her Instagram video posted on July 12 (or, on Monday, July 13, in Australia.) In the clip, the Isn’t It Romantic actress did a grueling tire-flip exercise. With her trainer cheering her on, Rebel, 40, pushed herself until she moved the tire over the line, and when she did, Rebel celebrated with a triumphant shout.