it's very 60's, obviously. Jack is amazing, as usual... some of the other actors are as good.. Karen Black is fantastic, for example.

The Answer - In the movie there is a scene in which the main character, (Robert), and another main character (Elton), are driving on Interstate 5 in Ca. and Robert gets out of the vehicle he's in and jumps on the back of a truck ahead of him where a piano is being transported and proceeds to play it as the truck continues along the freeway.

It was filmed a very short time before I-5 actually opened... and the location is quite close to my home AND where i was attending college when the movie was filmed.