AMC Entertainment Holdings (AMC) stock surges 33% to $5.85.
"Barbie" and "Oppenheimer" openings boost stock performance.
"Barbie" earns record $162 million domestically for female-directed film.
"Oppenheimer" grosses $82 million during the weekend.
AMC theaters witness highest attendance in three years.
Nearly 8 million global moviegoers visit AMC theaters.
87,000 Stubbs reward members book double feature.
Second-highest concessions sales in AMC's history on Saturday.
Delaware court decision halts stock conversion amid lawsuit resolution.