Other mistake: In the ending credits, Gary Carter is listed twice.
Other mistake: We can see a Christmas tree in the background at Kevin Costner's house when the team of attorneys are there going over the photographs, etc. Kevin Costner then meets up with Tommy Lee Jones on Easter Sunday. Christmas and Easter Sunday are not this close together.
Answer: No. The argument which mentions was the first closing argument by an assistant to Garrison and in it he mentions "back and to the left" once but not the multiple statements shown in the movie. The actual transcripts are available on line.