Grace mentions Manhattan Project. The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. That led to Allies winning the WWII.
Tanz says it is where the rubber meets the road. That means the point at which a theory or idea is put to a practical test.
Amanda Neel has the same telephone number as "Deeds Pizza" in the film "Mr Deeds", as displayed on her business card.