Abbott and Costello were huge stars over at Universal Studios during this time, and this was the first time they made a movie for another studio (MGM) during their peak years. The results are quite good as far as the comical shenanigans of A&C are concerned -- they engage in some pretty laughable situations and were really spot-on at their game here, having energetic fun; I wonder if they were trying harder to show that they could be just as good for a rival studio other than their own? But unfortunately it isn't all roses. MGM was noted for their musicals, and there is a lot of singing trickled about here -- though unlike some of the more upbeat ditties from the Andrews Sisters in the Universal movies, these interludes are cringe-worthy. I mean there's some downright AWFUL singing to be endured in RIO RITA. The worst is a lengthy cadenza performed by one of the lead ladies. Just brutal. Too bad, as this could have been a good solid vehicle for Bud and Lou. **1/2 out of ****