Radhika Apte has said reuniting with Saif Ali Khan in 'Vikram Vedha' has been "a lot of fun". The actress, who previously worked with Saif in 'Sacred Games' and 'Baazaar', added, "He's so funny, he cracks me up all the time." The film, which is a remake of Tamil film starring Madhavan and Vijay Sethupathi, will release on September 30.