Trashing Old Dogs is a bit like kicking a puppy. But here goes.

The new comedy from some of the folks who brought us Wild Hogs is badly written and broadly acted, shamelessly manipulative and not above stopping by the toilet for a laugh or two.
And it’s almost certain to be a big hit.

John Travolta and Robin Williams are professionally engaged in their roles — as lifelong friends and longtime high-rolling sports marketing business partners. They’re just not believable as friends or as the “types” they play.

Travolta is Charlie — the womanizing, back-slapping tell-the-client-a-funny-story half of the team.

Most of the funny stories (not funny, BTW) are about Dan, played by Williams at his most downbeat.

Sad Dan may be able to close the deal, but he’s a lonely soul, divorced, pining over a one-night stand (Kelly Preston) from seven years before.

The guys are on the verge of their biggest deal ever when “South Beach Vicki” (Preston) comes back into Dan’s life.

She’s going to jail (environmental protest) and oh, by the way, Dan’s the father of 7-year-old twins. Would he mind watching them for a few weeks?

There’s nothing offensive here, even the trips to the toilet. But when the best thing you can say about a comedy is that it’s harmless, you know these Old Dogs have lost their bite. Utterly.