A crew for a movie starring Michael Douglas and Diane Keaton plans to do some filming in Connecticut. Officials at Lake Compounce amusement park say scenes for Rob Reiner’s upcoming film ‘‘And So It Goes’’ will be shot at the park on Monday. Sara Frias, the park’s marketing director, said Reiner chose the park as a location after looking at several theme parks in the area. The park will stay open during the filming. Frias said that it is possible that some visitors might appear in the background of the movie.