Other mistake: When Marcello and Jennifer come to Angelo's home town they walk through some ruins. She sees the statue of an angel which was sculpted after her mother, and she knows they are in the opera house her father had rebuilt. However, if you look at the columns and arches of the building it's obvious that these are the ruins of a church.
Continuity mistake: Jennifer's bangs keep changing between covering her forehead half or fully in alternating shots in the scene where Frankie tries to stuff the farting hitman under the sofa. Again her bangs keep changing significantly when they talk about the past and how Frankie secretly 'took care' of her teenage adversaries.
Continuity mistake: When Frankie leaves the restaurant to deal with the policewoman who is just writing a parking ticket it is raining and everyone on the sidewalk is carrying an umbrella, but when the camera angle changes there is not a single umbrella to be seen. And a moment later, after Angelo has been shot, even the sun is shining.
Continuity mistake: When Jennifer watches the DVD with Angelo's message she starts drinking from a whiskey bottle. A moment later she is holding a glass and the bottle is nowhere, but as the show progresses she is back to the bottle again and there is no trace of the glass. Finally she collapses on the sofa after taking one last sip from the bottle which, as a close-up shows, is still half full, but when the bottle hits the floor neck-first no whiskey pours out.
Continuity mistake: Quite a bit is wrong in the scene when Frankie shoots Bruno through the book he is reading: When Bruno comes in, Frankie's right hand is lying empty in his lap next to the book which he is holding with the left hand. In the following shots we don't see his hands, just a bit of the book, but his arms aren't moving. Then we see the bullet coming through the cover, far away from the right hand, which is holding the gun when he drops the book.
Continuity mistake: When Jennifer admires one of the many shoes she has bought a hitman shoots it out of her hand. This sequence is somewhat messed up as the shoe flies up without her throwing it, and it disintegrates into small shreds only when it's already way up in the air. Another thing is that the brand name inside the shoe says 'ASADEI', while the writing on the box says 'Ensada', which is also the brand she had asked for.