If you haven’t kept close tabs on Kyle Gallner’s recent work, you’re missing out on one of the most quietly compelling runs in independent film.  With standout turns in Strange Darling, Dinner in America, The Passenger and Adam Carter Rehmeier’s new crime romance, Carolina Caroline, opposite Samara Weaving, the former child actor turned “scream king” continues to build a body of impressive leading man roles. Whether it’s a charismatic hustler or an unhinged punk rocker, the Pennsylvania native makes it all look effortless. So why haven’t the major studios given the 39-year-old a proper shot atop the call sheet at this particular stage in his career? Gallner admits that his latter-day stretch of independent opportunities haven’t come easy either. For Carolina Caroline, Rehmeier — who formed a deep bond with him by way of their cult classic, Dinner in America, the first of their multiple collaborations — had to fight to cast him as Oliver Anderson, the charming, traveling con man who falls in love with Caroline Daniels (Weaving) during his pit stop in her small Texas …