Chris Evans would love to see a Captain America and Human Torch spin-off movie.
The 36-year-old actor has starred as Captain America in five films so far in the Marvel Cinematic Universe and is set to reprise his role in 'Avengers: Infinity War' and 'Avengers 4'.
However, starring as the shield throwing superhero isn't the first time the actor has answered the call when the earth is in trouble after starring as Johnny Storm aka Human Torch in Fox's 'Fantastic Four' and 'Fantastic Four: Rise of the Silver Surfer'.
Fox owns the complete rights to the franchise and any new character within its universe belongs solely to the studio - which led to the cancellation of the 'Fantastic Four' comic series.
But Disney - which now owns Marvel Studios - is currently closing in on a deal to try and get back the rights for the iconic comic book characters and Evans has waded in as to a potential spin-off if the negotiations are successful.
He wrote on Twitter: "So who do I talk to about a Cap/Human Torch buddy comedy spin-off? I'm thinking 'Planes, Trains and Automobiles' meets 'Parent Trap'. (sic)"
Although the 'X-Men' franchise has been quite successful with both the Bryan Singer trilogy and the 'First Class' movies, however, Marvel does still have an input while making the films.
Fox needs Marvel to sign off on all TV deals regarding the superheroes, however, since the Marvel owns 'The Avengers' there has been some overlap with characters such as Quicksilver and Scarlet Witch - who have been members of both teams in the comics.
Unlike the popular 'X-Men' franchise, the 'Fantastic Four' films haven't been as popular at the box office.
In 2015, the franchise was rebooted starring Miles Teller, Jamie Bell, Kate Mara and Michael B. Jordan as the titular Four, however, the film was poorly received by fans and critics alike.
These two franchises are not the only Marvel comic book heroes that belong outside of the Marvel Studios, with 'Spider-Man' being owned by Sony Pictures.
However, 2017 saw the first time Marvel Studios and Sony have worked together on the fan favorite superhero after Marvel sold the rights in 1985 for $225,000, with 'Spider-Man: Homecoming'.
This collaboration meant that Tom Holland - who portrays the webslinger - is part of the Marvel Cinematic Universe rather than Sony's.