By Rebecca Rubin LOS ANGELES, (Variety.com) – “Top Gun: Maverick” has the box office sizzling… again. In its second weekend of release, Tom Cruise’s all-American action film collected a sensational $86 million from 4,751 North American theaters. Those returns rank among the top 10 highest-grossing second weekends in domestic box office history. Pandemic times or not, the Paramount and Skydance release is eclipsing significant box office milestones at record speed. After only 10 days on the big screen, “Top Gun: Maverick” has generated $291 million in North America and $548.6 million globally…