Les gamins (2013)

On getting engaged, Thomas meets his future father-in-law Gilbert, married for 30 years to Suzanne. Gilbert is disillusioned and feels like he missed out on life by getting married. He persuades Thomas to not marry his daughter Lola, then he dumps Suzanne and leaves home and the two dive into a wild new life as big kids, convinced that freedom lies elsewhere. But what is the cost of recovering your teenage dreams?