“Casual Encounters” (**1/2 out of four) was a clever dark comedy about a guy (Taran Killam) who finds out that his girlfriend has dumped him on a morning radio program and he then becomes involved in the bizarre world of online dating. Sebastian Michael and Erik Steinmetz’ script takes the form of a satire of a romantic comedy and online dating and is sharper and funnier than you might expect but is weakened at times by some crude and dumb moments that are unnecessary. Killam’s winning performance and refreshingly compact running time of only 1 hour and 22 minutes makes this worth sticking through.