The most glaring thing about “The Good Liar” is that it’s not nearly as clever as it thinks it is.
“The Good Liar” stars Ian McKellen as Roy Courtnay, an elderly longtime con artist who happens to meet a wealthy widow named Betty (Helen Mirren). Seeing an opportunity to make cash on another job, Roy initiates a new operation to start a relationship with Betty and be with her until he can get her to share her bank accounts and he can make the robbery happen.
Roy has to really commit to the role, though, as the job in convincing Betty isn’t entirely easy. Plus, Betty’s grandson, Stephen (Russell Tovey), doesn’t trust Roy from the very start. The result is a con job that’s more difficult than initially expected.