Down With Love (2003)

Continuity mistake: At the start of the movie, when Barbara crosses the road from Grand Central Station to catch the taxi, there is a blue car parked in front of it. Then when the shot is shown from the rear of the taxi, the blue car is gone. When the shot moves back to the side view, the blue car is back there again. In addition when the shot is taken from the side of the taxi, there is no green fence visible, however, when the shot is from the rear of the taxi, there is a shoulder-high green tubular fence on the footpath. (00:03:40)

Peter MacMannus: Catch, you are the best friend a guy with twenty diagnosed neuroses ever had.
Catcher Block: Oh, we've been friends a long time... I knew you when you only had twelve.

Trivia: The ending song scene, during the credits - singing wasn't strange to either of the actors: Zellwegger had a leading role in Chicago, and McGregor in Moulin Rouge, movies where they had several song scenes. In fact, the scene was only added at the insistence of the actors.

Question: When the start credits are playing, is it Renee Zellweger and Ewan McGregor singing?