While on the red carpet for the Spider-Man: Homecoming premiere, actor Robert Downey, Jr. stopped and talked about the changing role of Tony Stark and about the new film. RDJ appears as Stark for the seventh time (eighth if you count the cameo in the Incredible Hulk) and the character has changed quite a bit over the last decade. Picking up from the relationship Stark establishes with Peter Parker (Tom Holland) in Captain America: Civil War, RDJ talks about his surprise at becoming a father figure to another Avenger, but says there was no better actor he could've done this with than Holland.
Another issue brought up is the amount of betrayal Stark has had to deal with and what it's like to try and open up to someone new. The actor points out that Peter is young and that treachery comes with age. That his character is more willing to trust Peter because of his age. And how the relationship was established in the previous film when Tony shuts Peter down after he's been hurt. Not a move Tony would've done with most of the other Avengers, expecting them to push through just as he would. For a shot clip, it goes a bit deep into the characters.
Spider-Man: Homecoming opens July 7th.