A smart-alecky tone mars this sci-fi action adventure in which a time traveler (Ryan Reynolds) from the year 2050 arrives in the present where he teams with his 12-year-old self (Walker Scobell) to nip a future problem for humanity in the bud. Behind the flip dialogue are some positive messages about family bonding (with parents Mark Ruffalo and Jennifer Garner). But a script studded with vulgar expressions makes director Shawn Levy’s film grown-up fare. Mostly stylized violence with little gore, a scene of marital sensuality, several profanities, numerous milder oaths, considerable crude and crass language. The Catholic News Service classification is A-III — adults. The Motion Picture Association rating is PG-13 — parents strongly cautioned. Some material may be inappropriate for children under 13.