SPOILERS ahead for Avengers: Endgame!
According to Marvel Studios president Kevin Feige, Pepper Potts actress Gwyneth Paltrow didn’t know Samuel L. Jackson was part of the Marvel Cinematic Universe despite the Nick Fury appearing in several of the same films as her, such as Iron Man 2.
During a Q&A with Empire for the home video release of Avengers: Endgame, Feige revealed that the filming of Tony Stark’s funeral at the lake house “was shot in October 2017, the day we shot the 10th anniversary photo.”
Source: IGN.com Gwyneth Paltrow Didn't Know Sam Jackson Was in Marvel Movies With Her