His character is Billy Fiske. American volunteer pilot for the Brits in
Battle
of Britain. They were the Eagle Squadron.

Olympic Gold medalist.

Love story.

Guns. Explosions.

Top Gun 2?

Yep, it's real: "The actor also spoke admiringly of Mann, who will direct him
again in "The Few," an upcoming biopic of an American WWII pilot set to begin
shooting later this year. "The layers upon layers that he puts into the film
— that's what makes him Michael Mann."

For one thing, Fiske is a real person who did what he did--an athletic playboy
who stepped up and joined the RAF and flew in the Battle of Britain--if
anything, he was more handsome and charismatic than Cruise. There were 11 or 12
Americans flying with the RAF then, one of whom survived the war.
For another thing, look up some of Mann's movies--"Heat" might be a good
start--he's not a lightweight and he handles action and men in action well.