Two rival studios owned the same superhero at the same time. Marvel and Fox both cast Quicksilver in 2013, and the licensing deal let both of them use him. Marvel's version could not be called a mutant or connected to Magneto. Fox's could not be connected to the Avengers. The tangle started in 1994. Marvel was close to bankruptcy and sold off film rights to raise cash. Producer Lauren Shuler Donner bought the X-Men for 20th Century Fox for $2.6 million, live action and animation included. Quicksilver fell into a grey area. He had been bouncing between the X-Men and Avengers comics since the 1960s, so both studios had a claim on him. So they raced. Marvel dropped Aaron Taylor-Johnson's Quicksilver into the post-credits scene of Captain America: The Winter Soldier on April 4, 2014. Evan Peters arrived seven weeks later in X-Men: Days of Future Past and stole the movie. The kitchen sequence was a late addition, storyboarded only after Quicksilver was swapped in for another mutant, Juggernaut, then shot across the final two days of the main shoot. Bryan Singer filmed those shots at up to 3,600 frames per second, about 150 times the normal 24, which is why every water droplet keeps its shape instead of blurring. Marvel killed its own Quicksilver off in Avengers: Age of Ultron the following spring. Fox's 13 X-Men films cost $1.74 billion to make and took $6.08 billion worldwide. The last one broke the run. Dark Phoenix opened to $33 million in North America against a $200 million budget and lost more than $100 million. By then Disney already owned the studio that made it. Comcast had bid $65 billion for Fox's entertainment assets, which pushed Disney up from $52.4 billion to $71.3 billion. That deal closed at 12:02 a.m. on March 20, 2019, eleven weeks before Dark Phoenix hit theatres. Every mutant Fox picked up for $2.6 million came home. Avengers: Doomsday opens December 18, 2026, seven months later than its original May slot. Patrick Stewart, Ian McKellen, James Marsden, Kelsey Grammer, Rebecca Romijn and Alan Cumming are all confirmed for it. Marvel has not announced Evan Peters, though he has said he would take the call. Whoever ends up wearing the goggles in December, a Fox mutant can share a frame with an Avenger for one reason: Disney spent $71.3 billion buying the studio that owned him.