IN a stillborn mashup of "Dumb & Dumber" and "Knocked Up," the moronic titular siblings (Will Forte and Will Arnett) hire a surrogate mother (Kristen Wiig) to deliver a grandson for the benefit of their comatose father (Lee Majors).

There are few laughs in Forte's script, which essentially has one joke: The boys, home schooled by dad in the Arctic, have no social skills whatsoever, especially around women like their hottie neighbor (Malin Akerman).

Excruciatingly acted and ineptly directed by Bob Odenkirk, "The Brothers Solomon" is faux Farrelly brothers that should have gone straight to video.