By: Addison Wylie Let’s Be Cops is one of those comedies that’s hard to get behind.  You want to go with it, you want to laugh along, but you can’t help but be put off by the film’s sense of plausibility. Director Luke Greenfield co-wrote this screenplay with Nicholas Thomas, and it’s a script that does more harm than good.  The story starts off well enough with two schlubs (Ryan and Justin played by Jake…