When Alex is "proposing" to Simka, he takes off his hat, puts his hat back on, then immediately bumps heads with Simka. But the hat is off when they bump heads.
When the priest pronounces the nuptials man and wife, Tony has a drink in his hand. In the next shot Tony's hands are empty, and then back to holding a drink in the following shot.
During the Wedding Ceremony, Simka says a man has never kissed her, but Latka kissed Simka just 6 episodes earlier, in Simka Returns (1982).