Earning an estimated $35 million at the box office this weekend, "Kingsman" outperformed its modest projections, which -- according to director Matthew Vaughn -- has opened up the possibility of both a sequel and Colin Firth's return.

In this spoiler-filled interview with EntertainThis!, Vaughn revealed his early designs for the sequel and just how the film's continuing success may influence him to bring Firth back: "A lot of people are very upset that Colin [Firth] might not be in the sequel but I'm coming up with ideas at the moment. If people buy tickets in America, I've got a feeling we'll figure out a way for having Colin back."

While this hint about Firth's return is surprising in and of itself, Vaughn also weighed in on the direction of this possible sequel: "The sequel will be 'This is the modern-day gentleman spy.' Because Harry isn't. Harry even says, 'There is a reason why we've developed weak chins.' He said that meaning, 'Look at us, we need to get new blood into this system,' and that's what Eggsy is. I joke that we've made the prequel to the Eggsy movie."

"Kingsman" is now in theaters.