It’s the long weekend, and there’s no better way to beat the heat than to sit in a movie theater and watch something that’s been out for weeks. After six weeks in theaters, Deadpool & Wolverine has returned to the top of the box office and is estimated to earn about $19 million this weekend over four days. It’ll surpass the $600 million milestone for its domestic earnings in a few days’ time. The Ryan Reynolds-led film didn’t have much competition this weekend. Dennis Quaid’s Reagan and Blumhouse’s Afraid were both debuting this weekend. Still, they didn’t even make the top three— Reagan is estimated to earn about $9 million at no. 4, Afraid about $4 million at no. 9. Alien: Romulus (no. 2), It Ends With Us (no. 3), and Blink Twice (no.5) round out the rest of the top five. However, the…