New Delhi, July 13 -- Black Widow has released in most of the countries across the world and is already the biggest movie at the box office. Riding on positive critical reception and word of mouth, it has garnered the biggest box office opening yet, both domestically and globally. But the film is missing one much-awaited thing that MCU fans expected: the cameo of Robert Downey Jr as Tony Stark. The actor was rumoured to have a cameo in the Scarlett Johansson-starrer but was missing in the final cut. While speaking to Total Film, the film's director Cate Shortland revealed, "Initially, there was discussions about everything, about all of the different characters. What we decided was, and I think Kevin (Marvel chief Kevin Feige) was really ...