 There were 3 filmed endings to the movie.  The first is the one that is in  the normal release of the movie.  The second, available on the DVD version,  follows the path of the first one, but is just different and does not contain  the sequence in which the ambulance crashes into the house or the part where  Mark Rumsfield slide tackles Hans Klopek.  It does have a few more scenes  though like Hans being interrogated and Dr. Klopek giving a speech on what is  wrong with the suburbs.  Rube also tells Ray that he was going to enjoy  having him over for their final dinner.  The third, which has not been  released in any form officially, is supposed to have Ray get killed in the  van, the Klopeks are pronounced innocent, and the garbies are found bound and  gagged in the Klopeks trunk.  The last ending follows the ending contained  in the script.