Sacha Baron Cohen and Isla Fisher have a love that endures. The Hollywood couple is now celebrating 20 years together.The 50-year-old English actor/comedian andthe 45-year-old Australian actress paid touching tributes to each other Tuesday on Instagram, which is a huge deal considering the pair has a knack for keeping their private lives, well, private.The couple posted the same four-picture slideshow showing them as a super young couple.