A sort of grown-up version of “Moonrise Kingdom,” France’s “Love at First Fight” has some youthful free-range charm but not nearly as much as its predecessor.

An aimless carpenter (Kévin Azaïs) and a dour young pessimist (Adèle Haenel) he meets during a friendly wrestling match held by Army recruiters form an unexpected bond and become trainee soldiers together. Bored by military life, though, they wander off into the woods to discover . . . each other.

Mild and lacking much in the way of wit, the film doesn’t have a lot to say other than “opposites attract,” and the male lead is too fuzzily drawn to hold much interest (though Haenel’s character is intriguing). Even a coming of age film should have a bit more direction.