AceShowbiz -

Tony Stark might be engaged to his secretary girlfriend Pepper Potts in the upcoming Marvel movie "Avengers 4". The billionaire was about to pop the big question in front of reporters at the end of "Spider-Man: Homecoming". Her answer was not revealed in the film, but she might have said yes since recent on-set pictures showed Gwyneth Paltrow, who plays Pepper Pots, wearing a large ring on her finger.

The actress was decked out in white high-waisted pants and black tank top as she was rehearsing her line with Robert Downey Jr. who plays Stark or Iron Man, her onscreen love interest. The duo was joined by Mark Ruffalo who is set to return as Hulk.

In real life, Paltrow is dating TV producer Brad Falchuk. They were romantically linked after she parted ways with husband Chris Martin. They sparked engagement rumors earlier this year, but a source told PEOPLE they were not true.

Gwyneth Paltrow made her debut as Pepper Potts in the first Iron Man movie in 2008. She reprised her role in the next two sequels and was back for the "Spider-Man" reboot. When Tony Stark revealed his proposal plan, his assistant, played by Jon Favreau, joked that he had been carrying around the ring since 2008.

Favreau is expected to return to the fourth Avengers film after Downey Jr. shared on Instagram a group picture with him and Paltrow. Brie Larson is rumored to join the cast as Captain Marvel, Tom Holland as Spider-Man and Benedict Cumberbatch as Doctor Strange.

Directed by Joe and Anthony Russo, the film is scheduled to arrive in theaters across the country on May 3, 2019. In the meantime, Marvel Cinematic Universe will continue with "Thor Ragnarok" on November 3 this year, "Black Panther" on February 16, 2018, "Avengers: Infinity War" on May 4, 2018, and "Captain Marvel" March 8, 2019.

The other Marvel upcoming films include "Guardians of the Galaxy Vol. 3". It will set up 10 or 20 years of the next Marvel movies. It is rumored to come out in 2020.