While much of the movie is filmed in Chicago, the finale "watch it" moment at the opera house was film at The Rialto Theater in Joliet, IL about 40 miles southwest of Chicago. The scene where Danny & Rick are at a bar and meet up with two women was also shot in Joliet at a restaurant called The Keg.
The Whitesox game John and Anne attend was an actual game against the Toronto Blue jays, the blue jays defeated the whitesox 2-1.
Teri Clark's debut.