Sometimes you’re in the mood for a comedy that is sincerely stupid. I picked a good night to watch “The Other Woman” (2014). Plot summary: husband cheats, wife and mistress meet cute, hijinks ensue. There’s a little too much slapstick for my taste (pretty much any slapstick is too much slapstick for my taste) but there’s also some laugh-out-loud funny lines. I am getting into this reinvented Cameron Diaz, who plays women who used to be hot but are now kind of played out. And I can’t stand Leslie Mann, in any movie, ever, yet I couldn’t stop watching her.