“The Con Is On” (*** out of four) was an engaging screwball comedy about a con-artist couple (Tim Roth and Uma Thurman) who flee from London to Los Angeles and hatch a jewel theft plot involving a neurotic actor (Crispin Glover) and other assorted eccentrics (Parker Posey, Sofia Vergara, Maggie Q). Good of its kind with some snappy dialogue and a breezy cast that appears to be in on the joke and having fun. Roth in particular is terrific and him and Thurman make a great team in a reunion from “Pulp Fiction.” Made in 2015 and strangely sat on the shelf for 3 years but deserving of its release and recognition.